I have a family of Norway Rats that come visiting every night. I bring in all the food at night (fun with 4 coops) but I know they are still trolling. I have caught one with a snap trap but now the other won't take the bain again. I've tried and the good baits and I think they know that one of their own was whamboozled. What else can I do? I can't shoot it because I'm too residential and I seriously don't want to wait for that thing. I have 2 small kids and when the baby sleeps, I sleep. Ideas?