I said, "Turn around and smile... make a new friend"
But thats the closest, I'll turn around and see who it as and see if I should become friends, or be on the defenseive with an arm bar. I can't shrug it off as an accident.. I mean who in the world can SET their HAND on your shoulder(especially you Sixate you have 6 inches on me

) and it be accidental? The closest you get to that, is them thinking you're someone else, but in that case, I'd.. Make friends with them which is another category (the one I Chose).
Of course, I'm on the defensive... Lets say right shoulder for purposes of making this fun.

Left hand clasps over their hand, then step in, wrap my right arm around theirs. then twist.....twist.....twist....

If needed a punch to the Floating Ribs. And I have pretty quick reflexes, so i figure people just shouldn't try it, I'd hate to be jumpy that day.