I'm going to call my good friend a fucking idiot
Why do you think that you need to call him names?
Because he owes me money and I think he's a close-minded imbecile.
Friendships can hit rough patches but it is not good to curse at a friend. It could hurt your friendship to do that.
I don't care man. I'm going to call him a stupid fuck.
I think that that is going to put an end to the friendship. I think that it is unkind to curse out your friends.