Do you use assertions?

This is not really a "question" so I'm making it CW.

The

assert

Keyword is great!

It should make, feel your self more confident with the code you wrote, but, until today when I was creating a small test class ( < 20 lines ) I realize a never use it since it was introduced.

Heck! I barely use logger which is very useful indeed, but it wasn't until today I realize I don't use assertions.

Do you use assertions? If no, what's the reason?