Three Tough Rats

Three rats are sitting at the bar talking bragging about their bravery and toughness.

The first says:

- I'm so tough, once I ate a whole bagful of rat poison!

The second says:

- Well I'm so tough, once I was caught in a rat trap and I bit it apart!

Then the third rat gets up and says:

- Later guys, I'm off home to harass the cat.