There's no doubt that Howard Webb made a couple of really poor decisions at Old Trafford the other night.
Yes, of course Manchester United should have had a penalty when Spurs goalkeeper Hugo Lloris clattered into Ashley Young.
And, only a few seconds later, United youngster Adnan Januzaj was clearly upended just outside the box; Wayne Rooney would certainly have fancied his chances of converting the resultant free-kick, making the score 2-2 and rescuing a point.
But instead, Mr Don't-Rock-Any-Boats-In-World-Cup-Year Webb waved play on – and, to add insult to injury, then booked Januzaj for diving.
United manager David Moyes later described Webb's performance as "scandalous", and there's little doubt that the man who refereed the last World Cup final (badly) had another high-profile off-night.
But Moyes should be looking closer to home for people to blame for United's fourth home reverse in the Premier League this season. To Young and Januzaj in particular.
Yes, they were sinned against on this occasion, but the pair of them are largely responsible for United topping one ignominious table this season – for 'simulation' cautions.
Presumably this was in Webb's mind during those frantic few seconds at Old Trafford.
He was wrong, but football's karma train had caught up with habitual offenders.
The irony is that Moyes had already told off both players about their antics – and they'd both listened.