One day, shortly after the birth of their first baby, the mother had to go out to run some errands. The proud papa stayed home to watch his new son.
Soon after the mother left, the baby started to cry. The father did everything he could think of doing, but the baby wouldn't stop crying. Finally, dad got so worried that he decided to take the infant to the doctor.
After a brief examination the doctor undid the diaper and found that it was quite full.
"Here's the problem," he said, "He needs to be changed!"
The father was very perplexed, "Impossible, the diaper package says it's good for up to 10 pounds!"