I hate it when people ask me how I'm doing and I say, "Good," and then I ask them how they're doing and they say, "Well." Oh, you want to show off with your fancy grammar? Go ahead, I'm still good. It also bother me when people, instead of saying, "I felt bad for him," say, "I felt badly for him." It bothers me because I don't know if it's proper usage. I think that saying "I feel badly for him" would mean that you're bad at feeling, but I'm not sure. And whenever they say it, I have to think about it.