But then if we all do it, not many are on the record quite as outrageously as Fernando Torres this last weekend after playing a brief, albeit absolutely honourable, role in Chelsea's Champions' League triumph.
This was El Nino 16 months ago, when he left a still essentially adoring Anfield with barely a backward glance. "Loyalty in football has changed – players kiss the badge but the reality is that you do as well as can and then you move on. You cannot get too attached to any club."
Who can say that view didn't take us to the heart of modern football?
The trouble is that Torres is calling it somewhat differently now after his struggle to justify a £50m transfer fee. Now he wants rather more than a business-like arrangement determined by what happens in the only place relevant to the standing of a particularly well-rewarded player, which is of course out on the field.
He wants urgent talks with Chelsea to determine precisely what they expect in return for his £175,000 a week wages, saying: "This season I have felt things I have never felt before. I felt they have treated me in a way I was not expecting, not the manner for which the club brought me here. This is not the role for which I came and I'm not happy. I have had the worst moments of my career during this season."
However, it is manifestly true that Chelsea didn't impose Torres on former manager Carlo Ancelotti for some unspecified role in the chorus line. Plainly he was bought to score goals, a great fusillade of them, and when they didn't come life was bound to be somewhat less serene.
Bewilderingly, he goes on: "I want to know what role I will have in the team and what function is expected of me, which would give me the chance to evaluate if it is worth it. If it wasn't for the fans many times this season I would have thrown in the towel."
So much for the new hard professionalism that has supplanted those old fleeting loyalties.
The function of a goalscorer, Fernando, is to score goals, and ideally with enough frequency to justify a record transfer fee. When Wyatt Earp was hired as sheriff of Tombstone he didn't demand a set of job specifications from the town council.
He just made sure his Colt .45 was in working order and shot down anyone who challenged his professional standing. That was pretty much the requirement when Torres moved from Liverpool and he did more or less confirm that he was aware of this when he made his extremely abrupt farewell to those Liverpool fans and supplied everyone with his definition of the modus operandi of the up-to-date pro.
It is perhaps something the now embattled ownership of Liverpool should bear in mind when they are told that the favourite to take over from Kenny Dalglish, Andre Villas-Boas, is considering, with no great haste, quite what might represent his next most promising project.
Torres wants to know what Chelsea expect of him while Liverpool, if they are indeed considering hiring a man who made such a spectacular mess of his last job, wait to hear what "AVB" expects of them.
In a football world that hadn't gone totally mad Liverpool would be advising the former Chelsea manager precisely what they had in mind for him. It would be the widest possible detour. That may still happen if contact between Liverpool and Fabio Capello gathers pace.
Certainly there is surely a weird juxtaposition in these demands of the striker who didn't score and the manager who didn't manage – and one only heightened by the fact that one leading bookmaker yesterday had AVB 11-10 favourite for Anfield with Roberto Martinez 7-2 and Brendan Rodgers 9-1.
One theory on Merseyside is that neither Martinez nor Rodgers have acquired the gravitas to walk in the footsteps of Bill Shankly and his successors, which at the very least is touched with a certain amount of black comedy when you remember that the founder of one of football's greatest traditions arrived at Anfield at the age of 46 from Huddersfield Town, where he had guided the Second Division club to 14th place after previous stints at Carlisle, Grimsby and Workington.
No doubt Torres would be the first to remind us that times change; however at one point do we conclude that they have done so to the point of absolute insanity.
The instinct here is that a whole flock of something or other is flying over the cuckoo's nest when Torres tells us that he wants a little bit of job definition and Villas-Boas, he of the demand that players rush over to the touchline and include him in their goal celebrations, needs to know if running Liverpool is a project quite up to his idea of snuff.
Liverpool need a good hard pro with a proven record who understands the quality of different players and has the nerve to have them play according to their particular talents. Torres, rather than advising us on the new realities, should remember some of the old ones – most valuably that a goalscorer who doesn't score is a bit like a sheriff who can't shoot.
West Indies' new boys inspire talk of green shoots
It wasn't Cricket, Lovely Cricket ... and the West Indies Won, at Lord's yesterday, but it was a step in the right direction.
The team that once both illuminated and terrorised the world game have now won just two Tests in the last 31, a bleak record indeed since they beat England in Jamaica and galvanised the efforts of captain Andrew Strauss and coach Andy Flower to turn England into a professional force capable of fighting their way to the top of the world Test rankings.
The West Indian captain Darren Sammy is plainly still in the foothills of such a chore but he was right to talk about a few sturdy green shoots after Ian Bell and Alastair Cook were required to produce some of their best work to shut down the possibility of a shock defeat.
England's five-wicket win was much less than the anticipated formality, especially when debutant Shannon Gabriel sent back Kevin Pietersen. Kemar Roach had earlier bowled with a fire that made the memory of such as Michael Holding and Curtly Ambrose seem much less haunting.
King Viv Richards was, of course, hardly appeased. "It's all very well taking Tests into their fifth day, but we need to win," he growled. Of course, he would say that, but there did seem to be a little softening of the old rage.
It was as much as the new boys deserved.
Abramovich and Fitzgerald know the rich don't do humility
Anyone who ever doubted an old assertion by F. Scott Fitzgerald should have been in the dressing room of Chelsea in Munich after they won the Champions League.
Fitzgerald wrote: "Let me tell you about the very rich. They are different to you and me."
He was talking, perhaps, about their belief that anything is possible and certainly it was a theory supported by the victory speech of Roman Abramovich. He said that at least three more such triumphs were possible.
Given that the first came after nine years of trying, a propensity for cock-ups that might have given Inspector Clouseau a complex, the investment of £1bn, a run of good fortune that exceeded even the gallantry of some key players and the fine efforts of the interim coach, you do begin to see Fitzgerald's point.
In all the circumstances a touch of humility might have been more appropriate. But what do we know – not having ever been encouraged to believe we own the world?
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