Is it wrong for me to hang out in front of my house, and screen the people who are looking to potentially buy the evil neighbour's house?
Keeping in mind that the devil you know may be a whole lot better than other potential neighbours, would it be that wrong for me to discourage some people? I'm thinking of the partiers, the the guys who own at least 6 hummers and jacked up trucks; or the white trash who promise to have no less than 683 garden gnomes on their front lawn. I wouldn't do anything illegal; I'd just put Sir Barks A Lot (aka Cotton) outside, wind him up and let him yap nonstop until they leave.
Would that be so terrible?