try lamping round barns and beachers that way ya dog gets used to working wit the lamp
pluse u may catch more .smokeing them by the day is good but a good joey (rat) can cope wit the smoke for up to 10 min so u mit not get meny over a long space of time pluse u will stink at the end. start of maby wit i pack of good terriers, get a cuppal of kills then push her on ya own . i did this and do this with my dogs and they are ace.