The Confession - Part I

I'm a part of nature's design 
I never chose to be this way 
Every mouse should know when to hide 
And every doggy has its day 
You know well my social status 
So respectfully decline 
I provide a higher service 
To the leaders of mankind 

Now don't patronize me judge 
As the hypocrite you are 
I remember you as cruelest 
Most disgusting one of all 
When I'm dead there'll be another 
And another one after that 
For each rotting corpse 
Brings out rats...