The First Grade

One day the teacher decides to play an animal game. She holds up a picture of a giraffe and asks if anyone knows what it is.

No one raises his/her hand.

The teacher says, "See it's long neck? What animal has a long neck?"

Sally holds up her hand and asks if it is a giraffe.

"Very good, Sally," the teacher replies. Next she holds up a picture of a zebra.

None of the students holds up his/her hand.

"See the stripes on this animal? What animal has stripes?"

Billy holds up his hand and says it is a zebra.

"Very good, Billy," the teacher replies. Next she holds up a picture of a deer.

None of the students holds up his/her hand.

"See the big antlers on this animal. What animal has horns like this?"

Still no one guesses. "Let me give you another hint: it's something your mother calls your father."

Johnny shouts out, "I know what it is! It's a horny bastard."