Most Wanted_英语笑话

little johnny's kindergarten class was on a field trip to the local police station, where they saw pictures of the 10 most wanted men tacked to a bulletin board.
one of the youngsters pointed to a picture and asked if it really was the photo of a wanted person.
"yes," said the policeman. "the detectives want him very badly."
so little johnny asked, "why didn't you keep him when you took his picture?"