[VadeRetro]

It's a 13-yo cat. I'm thinking "bullet."

[b_sharp]

I'm not sure suicide would help you much. Granted you wouldn't have to smell the cat-crap, but you would also miss the smell of roses. Apparently there isn't enough room in a casket to even read a good book so you might want to doublethink the gun bit (unless you are dying of boredom down there and need to put yourself out of our misery).

[Doctor Stochastic]

Razors pain you;
Rivers are damp;
Acids stain you;
And drugs cause cramp.
Guns aren’t lawful;
Nooses give;
Gas smells awful;
You might as well live.

-Dorothy Parker