You know, I spent a fair amount of time running trap lines in the 1980's. In retrospect, I'd never do it again, but back then I was a stupid teenager living on a farm desperate to make a few dollars. One thing my stepdad did with my brother and I was be absolutely unyielding that the lines be checked two to three times a day. My brother almost got one hell of a beating when he decided not to do it one evening. It was kind of weird, but that was his way.