You can't keep milking the dead cow for 13 years
When I ride a motorcycle... I wear protection.
Two letters.
9/11
Because they ordered pepperoni pizza and all they got was plane.
Who still doesn't know about milk
In 200 years the milk will have developed a culture.
You cannot milk a goat for 13 years
Because my dad has been gone for 13 years looking for them.
A dead cow! (My 5-year old made up this joke)