A guy runs a stop sign and gets caught by a policeman.

Cop :	License and registration, please.
Mr. Smith :	What for?
Cop :	You didn't come to a complete stop at the stop sign.
Mr. Smith :	I slowed down, and no one was coming.
Cop :	You still didn't come to a complete stop. License and registration, please.
Mr. Smith :	What's the difference?
Cop :	The difference is, you have to come to a complete stop. License and registration, PLEASE!
Mr. Smith :	If you can show me the difference between slow down and stop, I'll give you my license and registration.
Cop :	Exit your vehicle, sir.

At this point, the cop takes out his nightstick and starts beating Mr. Smith. After the second stroke, the officer queries, "Do you want me to slow down or stop?"