Taldara, cats don't bury their poop very deeply. How do you find it? SMELL.
It's unmistakable. Or sometimes, there's a little "mound" and that's a dead
giveaway.

Or, use your little hand cultivator to go after some weeds around the tomato
plants and bingo!

It doesn't decompose quickly and anyway, I don't want carnivore manure in
my garden!

I don't hate the cats, just their people.