Friend isn't a like thing for me. I like everybody, even Heil! It's a trust issue for me. Just because a friend trusts you should mean that I do.
it means you probably have a good chance of being friends with the person if you hung out with them, but a friend of your friend isnt automatically your friend
I hate one of my friend's friend.
While they may be friends with my friend, they aren't MY friend/lackey... yet.