When my crazy cat died, I stuffed it into a grocery bag, cause I was on my way to work. I got the cat's body inside, but the tail, curled into a C shape wouldn't fit into the bag. I stuffed the bag into a closet. My cleaning lady had a fit when she found the dead cat in the bag in the closet (I had thought this was a closet she wouldn't open) Anyway, the cat was buried in the back yard.
Where I used to live the city service dept would pick up dead pets. I don't understand cremating animals or burying them in pet cemetaries. Of course, I grew up on a farm.