You never forget how joke::Two engineering students are crossing the quad, and meet near the middle.

The first says, "Hey, where'd you get that great bicycle?"

The second says, "The strangest thing happened. I was coming out of the physics building, and this freshman girl came riding up on this bike, dropped it on the ground, took off all her clothes, and said to me, "Take what you want!"

The first nods sagely, and says, "Good choice. The clothes probably wouldn't have fit."