I don't hug many people.

One time I went out with a friend and he randomly decided he wanted a couple of his friends (who I didn't know) to join us so he called them. When they showed up, one of them gave me a great big hug and I was thinking, "Who the hell do you think you are!?!" I went home pretty quick. I'm not hanging out with anyone weird enough to hug a stranger. Guy didn't even know my name yet.