Once there was this little boy, good looking, smart, the works. His parents put him through grade school, and he graduates at the top of his class, perfect grades and all. So his parents are so proud of him, they tell him they'll get him absolutely anything he wants.
He tells his parents he wants 10 purple ping pong balls. They try to talk him into something else, but that's all he wants, and they get them for him.
The kid goes through high school, and again, graduates with high honors, at the top of his class. His parents are so incredibly proud of him, they again offer him anything he wants.
He thinks about it, and tell them he wants 100 purple ping pong balls. THey try to talk him into a new car, but he denies it. Again, they get him the purple ping pong balls.
College comes along, and he studies for 6 years to be a doctor. He graduates college at the top of his class. Parents could not be happer. So, as in years past, they offer him absolutely anything he wants.
He asks for 1,000 purple ping pong balls, and he gets them.
So he goes on to be a doctor, and turns out to be one of the best in the field. One day, he's on vacation driving along a narrow mountain road. He sees a car coming in the opposite direction and realizes there is not enough room for the both of them to pass. Thinking about it, he could swerve to the inside, save himself, and send the other guy over the edge inevitably to his death. Since he's a doctor and he's dedicated his whole career to saving other people, he swerves to the outside sending his car over the edge and allowing the other driver to pass safely.
He wakes up in the hospital with his parents standing over him. They go on about how proud they are of him, and the unselfish decision he made. Once again, they offer him absolutely anything he wants. He looks up at them, and says,
"10,000 purple ping pong balls.."
"Are you sure that's all you want?" they ask him.
"All right, but before we get them for you, we have to know... all these years, that's the only thing you've ever asked for under all your accomplishments. What exactly do you need them for?"
He looks up at them and takes a deep breath, "Mom, dad, I thought it was so obvious...... I needed them for........."
...and he dies.