I have to admit I've done close grip pushups at uni once. However, it was only because I was bored and needed to take a break from work, I promise!
I've seen a group of two or three high school kids do the friday night arm pump routine a couple of times at my old gym. Fortunately I now train at a different gym and in the morning.
Your hatred of people is perfectly justified. I just had a phone call from my mom and, being a bit pissed of with a work situation, I asked her "Why do you think humanity hasn't died out yet given the number of idiots who have to be told to wipe their asses after using the toilet?". Her answer was "Because the smart minority keeps telling them what to do."