After reading all the recent posts, and feeling smug, what did I find on our, artificial, lawn, but 4piles of cat poo. Ughh
I cleared it up, and sprayed around with diluted vinegar, having run out of the Silent Roar granules. I don't know if it would have worked, cause it rained quite a bit. I think I know which cat is the culprit. She belongs to a neighbour, and is such a pretty little thing, but got antsy when we didn't allow her into the house, cheeky little devil.
By the way, when I posted the name of the repelling granules, I said "Lions Roar", when it should have been "Silent Roar".