She bought a used car.

A security guard was checking a used car lot one
night just after closing time when he saw a fat girl sitting in a car.
"Hey, you!" he said. "What are you doing? Are you trying to steal this car?"
"Of course not," she replied " I just bought it."
"So why are you still here?" he asked.
"I can't drive."
"Then why did you buy the car?"
"I've heard that if you buy a car from here you'll get screwed...so I'm waiting."