I've got a great joke. Here it goes:
A man has a son, and on his son's 5th birthday he told him he could have anything he wanted, all he had to do was ask. His son asked for a green golf ball. The father was a bit puzzled, but complied. On his son's 10th birthday, his father again told him he could have anything he wanted, he just had to ask. His son asked for a bucket of green golf balls. The father is even more puzzled, but again complies. When his son turns 16, once more his father tells him he can have anything he wants for his birthday, he only had to ask. His son asked for 10 buckets of green golf balls. The father has no idea what's going on, but sure enough he complies. When his son completes high school, his father offers him anything he wants as a graduation present, anything at all. His son asks for a car full of green golf balls. The father can't possibly see what they're for, but, as usual, he complies. Later on his son gets married and his father tells him he can have anything he wants as a wedding gift, he just needed to ask. His son asked for a house full of green golf balls. The father is at the limits of his perception, but has no choice but to comply. Finally, when the father is on his death bed with his son by his side, he asks his son why he wanted all those green golf balls. And then he died.