Three young boys were arguing whose dad was the fastest. The first boy says,

"My dad drives a drag racing car and goes three hundred miles an hour, so I say he's the fastest!"

The second boy brags,

"That's nothing! My dad's a fighter jet pilot and he flies faster than the sound barrier, so I say he's the fastest!"

The third boy just laughs and says,

My dad's got both your dad's beat. He works for the government and his job doesn't get out until five thirty, but he's home by three o'clock every day!"