Yeah we had cats spraying particular bushes, so after a few beers and some asparagus I pee'd on the same bushes to try and annoy the cats that sniff it.
I've also wee'd in the compost bin, supposedly helps it get going.
I'm surrounded by bungalows so not overlooked.
This thread has reminded me to give it another go, as we have a new lot of cats using my garden as a through-junction.