They know I feed their cats. I convinced them to neuter the cats eventually. They have one cat they keep indoors. They were being over run with kittens at one point. I did mention re-homing too but they always just say everything is ok. The other day they saw one trying to get in my front door and they called him away, I said oh it's ok, I wont let him in. They told me they weren't letting him in either as he had pooed indoors and they didn't wanna have to clean it up again??
I'm just looking out for the cats really!