Wow! I'm pretty lucky with my job, but my one complaint is that my boss is trying to show me stuff on the mass spec, and he goes too fast, and acts patronizing and stuff when he says "I showed you this 10 times." Finally I said, "You've done this for 20 years; I've been doing this for 4 months. I'd like to see how well you would do at my old job." This involved some hairy polymer work, and he knows it. But we made up. He's Chinese, has a heavy accent, and mumbles, so it's hard to understand when he's trying to explain something.