Two friends are driving in a car. Phil, from the passenger seat, is yelling instructions.

"You idiot! You were supposed to turn left!"

"Make a U-Turn now! You're going to get lost!"

"OK then, merge left onto the freeway."

"Dummy, you missed the freeway! Now it's going to take forever to get where you're going!" You're hopeless!

"Say, Phil, what's up with that ornery voice?" asks Tom, from the driver seat.

"Sorry, Tom, that's my GPS-WAAS talking."

"What's a GPS-WAA?"

"GPS With An Attitude!"