Not as far as I know, but neither is having a soul. [ So for all he knows maybe it's some kind of unconscious releasing of pressure, like nocturnal emissions only bloodier. Sure never happened to him before, which makes him wonder if there are more downsides to this soul business than he initially thought. ]
Hasn't been anyone around to ask for a long time either, so I don't know what kind of measures you want to put in place, unless you're thinking of locking me up every night.