The Moral Of The Story

One day at the end of class, a teacher had the class go home and think of a story and then conclude the moral of that story...The following day the teacher asked for the first volunteer to tell their story.
A girl raised her hand...,"My Daddy owns a farm and every Sunday we load the chicken eggs on the truck and drive into town to sell them at the market. Well one Sunday we hit a big bump and all the eggs flew out of the basket and onto the road."
The teacher asked for the moral of the story, and the girl replied, "Don't keep all your eggs in one basket."
"Well done, now who wants to go next?" Asked the teacher.
Another girl quickly raised her hand. "Well, my Dad owns a farm too, and every weekend we take the chicken eggs and put them in the incubator. Last weekend, only 8 of the 12 eggs hatched."
"And the moral?"
The girl replied, "Don't count your chickens before they're hatched."
"Excellent, Who's next? " asked the teacher.
A young boy jumped up. "My grandad fought in the Vietnam War, and his plane was shot down over enemy territory. He was able to jump out before it crashed with only a case of beer, a machine gun and a machete. On the way down, he drank the whole case of beer. Unfortunately, he landed right in the middle of 100 Vietnamese soldiers. He shot 70 with his machine gun until he ran out of bullets. Then, he pulled out his machete and killed 20 more. But, the blade on his machete broke, so he killed the last ten with his bare hands."
The teacher looked at the kid with a shocked expression, "My goodness! Can there possibly be a moral to this story?"
The kid replied, "Yeah...Don't fuck with grandad when he's pissed."