Yet another joke

Two guys driving through Texas get pulled over by a state trooper. The cop walks up and taps on the driver's window, the driver rolls it down, and the trooper smacks the driver in the head with his night stick.

"Ow!" says the driver, "Why'd you do that?"

The trooper says, "You're in Texas, son. When I pull you over, you'll have your license ready."

The driver says, "I'm sorry, officer; I'm not from around here."

The trooper writes the guy a ticket and gives his license back, then walks around to the car's passenger side and taps on the window. The passenger rolls the window down, and the trooper smacks him with his night stick.

"Ow!" says the passenger. "What'd you do that for?"

The trooper says, "Just making your wish come true."

"What the hell does that mean?" asks the guy.

"Two miles down the road, you were going to say, "I wish that cop would have tried that shit with me!"