A physicist, engineer and a programmer were driving down a mountain pass when the brakes failed. The car started to accelerate and they were soon screaming into the valley. Hanging on for dear life, they smacked the guard rails several times. Fortunately, they came across and escape lane and they were able to navigate up the hill to a stop.

The physicist said, “We need to model temperatures resulting from friction to determine why the brakes failed.”

The engineer said, “I have a case of temperature sensors in the trunk.”

The programmer said, “Let’s not get ahead of ourselves. We need to get the car back up the mountain and see if the failure is reproducible.”