LH,

 "PEOPLE ...are allowed to roam around freely, killing wildlife, spreading diseases, fouling the garden of the Earth with their excrement and garbage, damaging nature and breeding even more of their kind"

 Amen, brother!  :-)
 

Amy   My husband looked at the cat and said, "I told you not to come in the house."   LOL!
 

NIcole, I'm with you.  Yes, my cats probably have dropped a few turds in the neighbors' yards (though they mostly go potty in MY garden or in the indoor litterbox),
but I've had far more damage to my plants and yard (not to mention my car at times) from the neighbors' kids with the skateboards, basketballs, etc.   And, oh, there are the dogs that wake me with their barking or get out of their yards and mess up my garden, too.  Human adults have done damage from time to time, too.
It's part of living in town.  I'd hate for there not to be any cats, dogs, kids, or other humans around just so I could have an unblemished garden.
 

As for cats farting,  I actually never noticed it until a day or two ago.  (DOGS farting, now that's a different matter entirely!)  Maybe sometimes when I had roommates I just assumed they did it, when it was really one of the cats.

Genie