Three engineers are riding in a car — a mechanical engineer, an electrical engineer, and a computer engineer.
The car breaks down and coasts to the side of the road.
“Hang on,” says the mechanical engineer. “The problem is probably the engine. Let me have a look at it and I’ll have us on the road again in no time.”
“Wait,” says the electrical engineer. “The way it just stopped like that, I think it’s the electrical system. Let me have a look and I’ll get us going again in a minute or two.”
“Hold on,” says the computer engineer. “Why don’t we all just get out of the car and get in again and then see if it starts?”