Desert Walk

A Dutchman, a German and a Belgian are planning to walk in the desert.

The Dutchman says:

- I'll bring an umbrella for the shade when it gets too hot.

The German says:

- I'll bring some sunglasses. This sun can really destroy your eyes!

The Belgian remains silent.

Next day, the Dutchman and the German are astonished.

- What's that? - they both shout.

The Belgian answers:

- It's a car door. Now I can open the window when it gets hot...