One day at the end of class little Billy's teacher has the class go home and
think of a story and then conclude the moral of that story. The following day
the teacher asks for the first volunteer to tell a story. Suzy said,
"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 asks for the moral of the
story. Suzy replies, "Don't keep all your eggs in one basket." 
Next is little Lucy. "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." The teacher asks for the moral of the story. Lucy replies
"Don't count your chickens before they're hatched." 
Last is little Billy. "My uncle Ted fought in the Vietnam war; his plane
was shot down over enemy territory. He jumped out before it crashed with only a
case of beer, a machine gun and a machete. On the way down he drank the case of
beer. Unfortunately, he landed right in the middle of 100 Vietnamese soldiers.
He shot 70 with his machine gun but ran out of bullets, so he pulled out his
machete and killed 20 more. The blade on his machete broke, so he killed the
last ten with his bare hands". The teacher looks in shock at Billy and asks
if there is possibly any moral to his story. Billy replies, "Don't fuck
with uncle Ted when he's been drinking."