 One would go into banishment if while one was lowering a cask, it fell down and killed someone.One would go into banishment if while coming down a ladder, one fell and killed someone.But one would "not" go into banishment if while pulling "up" the roller it fell back and killed someone, or while "raising" a bucket the rope snapped and the falling bucket killed someone, or while going "up" a ladder one fell down and killed someone.