Laughing in someone\'s face There's a sales manager here that's real annoying and hard to deal with because he's so high energy/nervous. Certain people in the office have talked about what a pain in th butt he is to work with because he's so obsessive. I rarely deal with him, so I usually find it really funny. Well, recently, he caught me in the hallway needing something for his computer. As he's talking to me, I couldn't fight laughing at how obviously crazy he is. I mean it was genuinely funny. He's not stupid or anything like that, he's actually very smart and a good seller (sales rep), his mannerisms are just so peculiar. So is that rude?? He's asking me about something with his computer, and I'm laughing as I tell him what's wrong. What the heck kind of excuse can I have for laughing in the conversation???