answer:You don’t want to get into enabling behavior of self-destructive acts. So you don’t lend money to a friend who is an alcoholic or a drug addict, for example, even though you might freely lend money to other friends. I think there are other things that might cause me to ditch a friend who hadn’t mistreated “me”, and that might be if he / she mistreated someone else that I knew about, or an animal.