Weasels are goin 24hrs/day. They are very high energy and need to hunt almost constantly. They sleep very little. They apparently like to drink blood but return to eat flesh when they don't/can't get fresh kill. I had a weasel in my shed where I process my harvested large meat animals. The weasel would gather and horde the trimmings. I was told that many years ago but finally learned it first hand when the weather warmed and a smell started permeating the shed. The little buggers had stashed in the back of the fridge and under the freezer and cupboards/storage units.