Underage

A professor at a university taught during the day and did research at night. He would usually take a break in the evening, however, calling up an online strategy game on the Internet and playing with an online team.

One night, he was grouped with a veteran of the game who was a master strategist. With him at the helm, their troops crushed opponent after opponent, and after six games were undefeated. Suddenly, the fearless leader informed the team his mom wanted him to go to bed.

"How old are you?" asked the middle-aged professor.

"Twelve," he replied. "How old are you?"

Feeling his face redden, he quickly typed, "Eight."