Cancer.

Greedy,
Thirsty,
Dangerous.

Anyone will do.
'Let me see...
Today I choose you'.

Well she's made her choice,
And with it we shall live.
But why! Not again,
There's so much more to give.

I'm feeling sad,
But getting cross,
Feeling like
I don't give a toss.

Emotions changing,
Can't keep track.
For fucks sake cancer,
You sure know how to knock us back.

Moya Levy

http://www.poemhunter.com/poem/0099-cancer-s-choice/