Little Johnny - Stupid

A new teacher tries to make use of her psychology courses. The first day of class, she starts by saying, "Everyone who thinks they're stupid, stand up!" After a few seconds, Little Johnny stands up. The teacher asks, "Do you think you're stupid, Johnny?" "No, ma'am, but I hate to see you standing there all by yourself."

Cat Stuttering

Little Johnny is sitting in a biology class, and the teacher says that an interesting phenomenon of nature is that only humans stutter. No other animal in the world does this. Johnny's hand shoots up. "Not correct, Miss!" he says. "Please explain, Johnny," replies the teacher. "Well, Miss, the other day I was playing with my cat on the porch. The neighbor's Great Dane came around the corner, and my cat went "ffffffffff! ffffffffffff! ffffffffff!" and before he could say "FUCK OFF!", the dog ate him!"

Here's Little Johnny!

A teacher in New York City wanted to see how many animals the city kids in her fourth-grade class could identify. She drew a picture of a cow on the blackboard and said, "Who can tell me what this is?" A little girl raised her hand. "Yes, Janie, what do you think it is?" "It's a cow, teacher." "Very good, Janie," said the teacher. Then she drew a picture of a pig, and a little boy answered correctly. She drew several other barnyard animals and was unable to stump the class. Finally, she decided to try something a little more difficult. She drew a stag with a large spread of antlers. The kids just stared, but nobody offered an answer. "I'll give you a hint," said the teacher. "What does your mommy call your daddy when she's trying to be 'lovey-dovey'?" Instantly, little Johnny raised his hand and said,  "Ooh, ooh!, I know, Teacher. It's a big horny bastard!"