Watching people ignore Covid-19 guidelines as the NHS struggles to cope is "heartbreaking", nurse and radio presenter Katharine Walker has said.
The former Miss Northern Ireland, who works as a neonatal nurse, hit out at idiots who post pictures of themselves breaking the rules on social media.
The 26-year-old, who recently landed her own weekend show on Cool FM, told Sunday Life: "Unless you work in healthcare, it's hard to appreciate what it's like.
"The most frustrating thing is seeing people breaking the rules and then blatantly flaunting it on social media.
"It really just breaks my heart because we have newborns who have had to be separated from their mothers because the mum tested positive.
"This is for up to 10 days or more and they're missing out on the first two weeks of their baby's life, which is really heartbreaking.
"Thankfully, I haven't been personally affected, but things like that just really upset me when we're working so hard in hospitals and most people are sticking to the rules.
"You just seem to also have those people that don't seem to care. That's been the biggest bugbear for me.
"It seems to be getting better and sinking in with people a bit more now, but it's still frustrating to see people not wearing masks and blatantly breaking the rules.
"I know people have to do what they can to look after their mental health and stuff, but there were people on Instagram just taking it too far.
"It's almost like a middle finger up to the rest of us, who are obeying the rules and trying to work through it."
After she was crowned Miss Northern Ireland in 2019, Kat went on to build a career as a model and radio presenter while continuing to work as a nurse.
She landed her show on Cool FM following a reshuffle of the station's presenters and will be taking on weekend late night shifts, including a childhood favourite of hers: Cool Goes Quiet on Sunday evenings.
Landing the slot was one of her dreams as a teenager.
"It's only just sinking in. Life had been a bit on pause for me, so it was very exciting for me to get the call," Kat explained.
"I've been at Cool for almost two years, mostly on the Cool Saturday show, but it was always the end goal to get my own show at some point, so I'm delighted.
"Stuart Robinson and I were a bit of a double act on the Saturday show. It was really good fun, so it's bittersweet because I'll miss that.
"I learnt a lot, but it's a new chapter now. I've got lots to do. The show is iconic and everybody knows it.
"It's cool because that's the show I would have listened to on a Sunday night when doing my homework for school the next day, leaving everything until the last minute as usual.
"It's amazing now to be on the other end of it and to be the person behind the mic."
She has plenty of plans for the new show which she can't wait for listeners to hear.
"I've got plans for how I want to shape the show. It's kind of crazy, but when I was younger I would have listened to Cool Goes Quiet. I would have sat and written down the names of songs so I could add them to my iPod.
"I always wanted to be a radio DJ, so it's incredible I'm hosting the show now. I took a leap of faith getting into it a few years ago. I never expected it to take off the way it has done and to be here now. I'm so grateful for the opportunity.
"I grew up in a radio household and it's always something I've had my eye on, so it's a bit like coming full circle and fulfilling a childhood dream. I'm absolutely delighted."
As well as her radio and nursing commitments, Kat continues modelling on her Instagram account, which has more than 16,000 followers.
She is close friends with fellow former Miss Northern Ireland Tiffany Brien, who quit Instagram last year after being bullied by trolls.
Kat, who is dating Tiffany's brother Jack, said that while it was hard seeing what her friend was forced to go through, she was now in a much better place.
"Tiffany's such a strong individual and she's so happy now and is moving on with life," she added.
"I suppose it worked out okay, but it was tough to watch her going through that."