A mathematics grduate student is walking across campus when his classmate rides up to him on a new bicycle. “Where did you get the bike from?” he asks.
“It’s a Thank you present from that freshman girl I’ve been tutoring,” he explains. “Yesterday she called me and told that she had passed her math final and wanted to drop by to thank me in person. She arrived at my place on her bicycle. When I had let her in, she took all her clothes off, smiled, and said to take anything I wanted!”
The math grad stares at him for a moment, and then replies, “Good choice. I doubt the clothes would’ve have fit.”