Frustration.
Call me weird, but I usually don't mind when people are venting their anger and frustration at me. Most of the closest people do this to me, and frankly, I don't take it too hard. Although I don't forget their snide remarks on my always-rude-jokes, but I see what kind of situation these people are in, which makes me be a little bit understanding. Provided that I see why you're mad in the first place though. Unless you're a girl, with that time of the month, everytime you vent your frustration at me, just do me a favour; tell me what makes you upset. Just so I won't hold a grudge on you for the next half a decade, literally. p/s Entah dibacanya ke tak. Kalau ye, ingat ni tau.