We started using kitty treats to lure the neighbor's cat out from under my son's car so he could drive to work. Things evolved until now we have to pay "the kitty tax" every time we leave the house. He watches the doors, changing from the front to the back doors when 1 isn't productive. He peeks inside the patio doors and meows loudly to get our attention when he sees us and demands his "tax payment". A monster of our own creation.