An engineer is walking down the street, and sees another guy from his lab walking along with a new bright red motorcycle. He's impressed, especially since his friend doesn't know how to ride a motorcycle, so he goes up and asks, "Wow, where'd you get that?"
His friend explains, "Well, I was walking along, and this gorgeous blond drives up on the motorcycle, stops in front of me, strips her clothes off and tells me, 'Take what you want!'"
The engineer nods in understanding. "Good choice. Her clothes probably wouldn't have fit you."