Council worker

3 boys are talking in the playground. The 1st boy says, "My Dad's the fastest man in the world." "How do you know that?" Asks the other boys. "Because he can fire a bow and arrow and run and catch it!" He replies."That's nothing," says the 2nd boy. "My Dad can fire a gun and run and catch the bullet!" That's nothing says the 3rd boy, "My Dad works for the Council, he finishes at 4.00 and he's home by 3.30."