Or do what some creep did in my neighbour a little under 18 months ago, baited fish with shattered glass and had some poor cat eat it. Of course the animal died from its insides being torn apart, and bleeding internally. It was a total disgrace, and I hope I never see a sight like it again, because if I do, I swear I will physically kill the person whom did it, for such a shameful act of cruelty.
We never did find the culprit, which is a good and bad thing, good because he would have seriously never lived a day to tell the tale of his cruel act, and a bad thing, because everyone wanted that thing behind bars for what they did. Whoever they were.
And then a couple of years back, an American pitbull killed a poor cat sitting out on the front patio sleeping happily in the sun. That dog was never found either.
As for cats, am not a fan myself. But I'd never wish anything bad upon them. I just don't find them loveable enough, and have had several bad experiences with them, when I was scratched by one on the face in the dead of the night at a friend's place, that I was staying at. It was locked outside the room, despite its persistent meows. And when my poor dog, whom at the time was a pup almost lost an eye to a cat, that sniped at it. Despite the fact the cat was on our property and our dog, an 8 week old pup was eating her breakfast.
Laws here in our area now make it illegal for cats to be out at night, and have to have collars with a minimum of two bells to warn the native animals, especially when there are echidnas, bilbys and rare breeds of spinifex hopping mice in our local area.
On top of that cats must be desexed.
Dom, why don't you get a squirt gun, and if you see the cat spray it with that. Fill it with water and add a couple of drops of lemon citrus. You will find the cats won't like citrus (most animals hate it), and will remember your place as the place where they get squirted with water/lemon.