A Swiss, a Frenchman and a Belgian are prisoners of a German prison.
One day, they try to escape but they must pass over a large brick wall.
The Swiss tries first, he jumps and drops a brick.
Suddenly, the German guard shouts:
- Stop! Who's there ?
The Swiss responds:
- Waf! Waf!
Come the Frenchman's turn, he drops three bricks. The German guard shouts:
- Stop! Who's there ?
The French responds:
- Meow! Meow!
Then the Belgian starts and drops five bricks. The guard screams:
- HALT !!! Who's there ?
And the Belgian responds stupidly:
- It's still the cat !!!
(and he gets shot!)