SOMETHING I DON'T LIKE:
When you see somebody trip and fall down in a public place... and THEY LAUGH!
First of all, it's annoying because it's somebody pathetically trying to cover up that they aren't embarrassed in front of a bunch of people. "Ha-ha," they lie. "I'm not really mortified that this is happening to me. I'm free and easy-going! Humiliation is fun!" Just admit that you're sad you look like a dumb-ass, dumb-ass.
Second of all, when the person laughs, they take away the fun of watching somebody trip and fall down. It's funny because you didn't enjoy it. It's funny because you are embarrassed. Quit ruining my fun.