Bad Example

A teacher says, “Okay, class. Today we're going to be talking about the tenses. If I say, I'm beautiful, which tense is it?”
Little Johnny raises his hand and says, “Obviously past tense, Miss.”

Grandpa and Little Johnny

Grandpa and Little Johnny are sitting on a bench in the park. Johnny asked, "Grandpa are you going to take that new Viagra?"
Grandpa looks at him and says "No Johnny, I will not."
"But Grandpa, why?" asks little Johnny.
Grandpa replies. "Because there is no sense in putting lead in your pencil if you have no one worth writing to."

Little Johnny and Venus Statue

The teacher, brought a Venus statue in class and asks: "What do you like best about it?"
"The artwork," says Robert.
"Very good. And you, Peter?"
"Tits!"
"Peter, get out! And you, Johnny?"
"I'm leaving, teacher, I'm leaving."