Physical Training Job
The physical training instructor was drilling a platoon of soldiers.
"I want every man to lie on his back, put his legs in the air and move them as though he were riding a bicycle," he explained. "Now begin!"
After a few minutes, one of the men stopped.
"Why did you stop. Smith?" demanded the officer.
"If you please, sir," said Smith, "I'm freewheeling for a while."