Best thing in world for pet cats that are coming into your garden is a big ole super soaker water gun, my kids have a few but after consistent soakings no cat dare goes in garden anymore haha just got to be consistent an neighbours all know, I told them it was a soaking or it was a one way car trip an they didn’t like that an I can’t blame them, they are pets like it or not, folk don’t like how we treat our dogs but don’t give em right to be shite to them, I don’t agree with letting cats roam all night an day but who am I, I’ll just keep soaking them if they come back haha