Over the last few weeks we've had a problem with a huge mangy black tom cat terrorising our neighbourhood. My 9 month old cat has been neutured but he's still trying to break in to our house frequently. I have friends who live quarter of a mile away and he's making a nuisance of himself there.
I think he's a stray, he's certainly very matted and unfriendly but he's not underweight.
What should we do?