A 2nd grade teacher decides to teach sex ed. to her class.
 
 She starts out by drawing a penis on the chalk board and asks the
 class, "Does anyone know what this is?" 
 
 Little Johnny jumps up and says, "Yes, my dad has 2 of them!" 
 
 "Are you sure about that Johnny?" asks the teacher, somewhat
 stunned. 
 
 And little Johnny says, "Yep, he uses a small skinny one to go to
 the bathroom, and a big long one to brush the babysitter's teeth."