This is what I did when I was in University. One day, I was bored to death. Suddenly, I saw a fly in my bedroom. Mmmmm, a good idea came to my mind.
I closed all the windows and the door, and started to go after the fly. Whenever it attempted to stop, I jumped up and scared it so that it could not stop flying. About 4 hours later, it was so tired that it landed on the wall, and even I pushed it with my finger, it walked a few steps away and stop. Later, it couldn't even walk.
So I proved that a fly can fly for 4 hours non-stop.
