Yes, on the way out of the metro, as you're about to go through those narrow gates. The distractor who tried to get me cut in front rudely, then suddenly was on one knee with a pack of cigs on the ground pulling on my pants. I jumped back and smacked into the guy going for my wallet, but I don't keep it in the back pocket for just that reason (I've always figured I'm a bit more sensitive to groping hands nearer my genitals - used to keep my cash in a little plastic bag taped inside my underpants in my crotch when I was bumming around Asia).