I like to stand at least a couple of feet away from someone; people have a tendency to want to touch me... I've mainly had problems with friends grabbing me in places, eh eh. So nowadays if a friend is standing too close to me, I typically kick them in the shins or whatever. And yes, I've had random people who walk up to me and grab a handful (usually girls, so weird?). Or I am standing in line somewhere and a man ~accidentally grabs the back area. People can be such perverts nowadays.
My karate moves are justified.