Mongo's Goldfish

One day Mongo is in his back yard digging a hole. His neighbor, seeing him there, decides to investigate.

- Whatcha doin? - he asked.

Mongo replies:

- My goldfish died and I'm burying him.

- That's an awful big hole for a goldfish, ain't it? - asked the neighbor.

Mongo shot back:

- That's because he's inside your fuckin' cat!