I have seen some that look 16 with pimples and chewing gum and they were dead giveaways the way they were acting. I once told one, "look, I am not going to steal anything. go bother someone else" and they looked shocked and took off. (in New York) Also went to a store manager to complain that 'some guy dressed in black is following me around the store' and he said "he is loss prevention, I will have to tell him to be a little more discreet".

