Highly visible crash damage to a motor vehicle.
"Wow ! What happened to your car ?"
"I had a discussion with a biker at the traffic lights and my front end got a bit of involuntary restyling".
The last great German airship of the 1930's. It crashed because they could say where it was, or how fast it was going, but never both at the same time........
A Physicist's joke, based on a combination of Heisenberg's Uncertainty Principle and the German airship Hindenburg.
"He's had three beers at lunchtime and now he's wandering round the office like the Heisenberg."