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."
A Mathematician, a Biologist and a Physicist are sitting in a street cafe watching people going in and coming out of the house on the other side of the street. First they see two people going into the house. Time passes. After a while they notice three persons coming out of the house. The Physicist: "The measurement wasn't accurate.". The Biologist: "They have reproduced". The Mathematician: "If now exactly one person enters the house then it will be empty again."
and the one that illuminates why geeky types get into trouble in social situations even when they're clearly right:
A priest, a doctor, and an engineer were waiting one morning at the third tee (par 3, 185 yards, slight dog leg to left, water hazard on the right) while a particularly slow group of golfers were flailing away ahead of them.
Engineer: What's with these guys? We've been waiting for 15 minutes!
Doctor: I don't know but I've never seen such ineptitude!
Priest: Hey, here comes the green keeper. Let's have a word with him. Hi George. Say George, what's with that group ahead of us? They're rather slow, aren't they?
George: Oh yes. That's a group of blind fire fighters. They lost their sight while saving our club house last year. So we let them play here anytime free of charge!
Doctor: Wow! Thanks for the scoop George.
Priest: That's so sad. I think I will say a special prayer for them tonight.
Doctor: Good idea. And I'm going to contact my ophthalmologist buddy and see if there's anything he can do for them.
After a short pause ...
Engineer: Why can't these guys play at night?