Little Boys

Little Johnny went to the doctor to get a vaccination. After the shot, the doctor pulled out a Band-Aid and started to cover the spot on his arm. Johnny asked him to put it on the other arm.

"But, I put it over where you got the shot to let others know that it's tender and they shouldn't touch it," replied the doctor.

Johnny answered, "You really don't know much about little boys, do you, Doc?"