"Moral of The Story Project" joke

Just before the final bell rings, a third grade teacher gives her students a project. "Okay class," the teacher says, "I would like you to talk with your parents tonight and ask them to tell you a story that has a moral to it and share it with the rest of the class."
The following day, class begins and the teacher tells her students that it's time to tell their stories. She calls on Beth first.
Beth stands up and says, "My family raises chickens for the meat market. We had a dozen eggs and were counting on all of them to hatch so we could sell them, but only eight hatched."
"What's the moral, Beth?" the teacher asks.
"Don't count your chickens before they're hatched," Beth answers.
The teacher then calls on Wendy.
Wendy stands and says, "My family raises chickens for the market too, but we only sell the eggs. One day we put our eggs in a large basket but while we were driving to the market, we hit a big bump and all the eggs banged together and broke."
"What's the moral, Wendy?" asks the teacher.
"Don't put all your eggs in one basket," Wendy replies.
So far, the teacher is very pleased at how well this project is going and asks Tommy to stand up and give his story.
"Well," Tommy says, "this story is about my Uncle John who was a famous war pilot. While he was flying over enemy territory his plane was shot down and he had to eject. While floating down he looked at all he had to be able to survive being in enemy territory. All he had was a bottle of whiskey, his M-16 and an 8 inch boot knife. He didn't want the whiskey bottle to break and cut him when he hit the ground, so he drank it and threw the bottle as far as he could. When he landed he was surrounded by 100 enemy soliders. He shot 75 of them dead with his M-16, then ran out of bullets. He then got his boot knife out and killed 15 of them, then the blade on his knife broke. He then killed the rest of them with his bare hands."
"My goodness, Tommy! What's the moral to your story?" the teacher asks, a shocked expression on her face.
"Don't fuck with Uncle John when he's drunk!" Tommy chuckles and replies.