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 bump¹ 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 hatched²." 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 Ted³ 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 mess with uncle Ted when he's been drinking."