I'm going to piss my friend off
Who is this friend you want to anger?
Someone I really want to mess up and ruin their day.
You should try to be more considerate of your friend instead of angering them. They may use this bad treatment as justification to get back at you in the future.
I don't care. I'm willing to hurt someone to make my day better.
I'll be honest, you don't seem like a very good friend. You should be more considerate in general.