Little johnny is at school one day and his teacher asks the class "Can anyone name a thing that eats other things?"

The first little boy says, "An alligator, miss."

"That's very good Kevin and a very big word too ... anybody else?"

A liitle girl says, " Predator, miss."

"That's another good one Susan."

James puts his hand up and says, "A lion miss."

"Very good," says the teacher.

Little Johnny yells, "A vibrator, miss!"

"No Johnny," replies teacher, "It's a big word but it doesn't eat anything."

"Oh yes it does, my big sister has one and she says it eats bloody batteries."