I had to get an X-ray after a procedure. I was at the place and everyone was wearing masks, except 1 guy had his hanging from one ear. 10 people were waiting too. An 80yo woman said put the mask back on. He got furious, stating “I can’t breathe with it on”. She pointed out a sign saying masks must be worn. He got angry. At that point a nurse came over and said “she’s right. Put the mask on”. He said fine. I was then called in for the X-ray and as I passed the woman, I said “well done!”