We sorta got pushed into the chocolate part. The little mice has chewed through the foam insulation on the house and found a way in. They managed to chew up and nibble on 4 bags of chocolate chips. I figure they liked it enough to tick me off, they could like enough to spring a trap. Works...
For rats or mice we use chocolate. I use little metal bowls or deep lids we happened to have laying around. I pour in a nice portion of chocolate chips. For rats we actually use the useless small trap that the farm store sells with the bigger ones. We thought they were junk until one of the kids...