What if you caught your teen sucking on a pacifier and wearing diapers?

I Would Be Worried: This is bizarre unless it is part of a prank. If not , you need professional help such as a psychiatrist.

Deal with it calmly: This child needs a lot of understanding and a talk with a psychologist and psychiatrist to explore his or her feelings and why they feel compelled to behave in this way. Sometimes just asking the child yourself in an calm and understanding way will help reveal their fears and compulsions about their own behavior...