Jogging in the cold

So I was taking a walk with my girlfriend and these guys jogged by. Normally I wouldn't think twice about it because people jog by me all the time (no jokes please). But this time they all had there shirts off. Which I can normally also understand. But on this particualar day it was about 40 degrees ouside. This is not particularly cold but it would be if you had your shirt off. So I wondered which one of those guys is gay. Because one of them had to suggest, "hey, guys you wanna go jog around campus with our shirts off in 40 degree weather." and you know that one is gay. but i also wonder about the others. "yeah I love to take my shirt off and run around campus in 40 degree weather." So if its hot out. Go for it, take your shirt off, it makes sense, but if its cold and your with a bunch of guys don't. Or you will be passively aggressivley blogged against and you'll be sorry.