My neighbour has just adopted a dog, knowing it will go for any cat. We share a courtyard, not a problem, he doesn't let the dog out there. However, one of my cats, a very un-streetwise Devon Rex, who thinks he has the right to go into his house, through open doors, windows etc.
I've asked the neighbour on many occasions to let me know if this a problem, and that I will provide him with a supersoaker if my cat's being a nuisance, which he declined, and actively encourages him to come in by giving him Dreamies.
When neighbour told me he'd adopted the dog, knowing that it goes for cats, I said I'm going to get you a supersoaker (I've ordered one already) and he said "Oh no, I couldn't do that to your cat!" I tried to explain, better a squirt of water, than my cat ripped apart, but he was having none of it.
What can I do/say to make him understand that even though he likes my cat coming into his house, it's too dangerous?