I don't think the have much of a habit. If you think about them in the wild, they are opportunistic. They don't get fed once a week at the same time, they sit and wait for days on end. Then they would go find some heat and rest. My BP's seem to do things when they want. Sometimes ill spot clean them and they will be in there hides for days. Other times they will be out and about, just looking around. So in my "opinion," I do not think they are subject to habit, and its not bad husbandry.