AITA for laughing at my friend's sunburn?
I'm from Brisbane, and my friend from the USA came down and visited a few days ago. The first day, we went to the beach in the evening, and I pointed out that if we were going in the day, he needed to put on sunscreen. He didn't believe me, and said something along the lines of "back where I'm from, nobody really wears sunscreen, it's just the sun, it can't really hurt you!". I pointed out his skin is very, VERY pale and it will be burnt to a CRISP if he doesn't put on sunscreen and he said "Yeah but I overheard someone say it's only going to be 30 degrees tomorrow, that's like really cold. If it's that cold surely I don't need sunscreen", I tried to explain to him the difference between Celsius and Fahrenheit as well as explaining that the temperature isn't what gives you a sunburn, but I ended up realising he was probably really jet-lagged and sleep deprived and so his brain probably wasn't working as well as it normally does - he'd just been on a flight.
The next day we went to the beach again, and while we were walking there I asked if he put on sunscreen, he said no, and that he was a "real tough man" and could handle the sun, and even made a remark insinuating that Australians are weak for putting on sunscreen. I offered him some of my sunscreen and he declined. Despite this, we had a good time at the beach.
However, the next day we had planned to go to the movies, and I noticed that he was burnt ALL OVER HIS BODY. Like he was bright red and obviously in pain from having his skin cooked by the sun. I couldn't stop myself from laughing, and I said "bro you should have just put on some sunscreen, then you wouldn't look like a big beetroot" and he did NOT like being compared to a root vegetable while he was in pain from his full-body sunburn, and he chose to cancel the movies trip until I became "less annoying". I went back home, and couldn't resist the urge to comment on social media on one of his pictures from the beach trip the day before, and I commented "Did you get a nice tan?"