Stop running, if identifies successfully has two benefits. First: you dont get struck, and have a opportunity to set your stop in a safer location...(right where it happened). Second: the motions afterwards, are inclined to be strong, cause... guess who is behind it... There is a definite advantage in the trap... BTW: the easiest way to identify them: just examine the obvious places where retailers would put their stops... sweet little sitting ducks,enjoying the sunny day. . .unaware of this hunter behind the bush....