Not the sort of realism I am thinking of. For all that D&D® has rules, for all that the action takes place in an imaginary setting, RPGs are more like real life in that one cannot reliably predict what's going to happen. Unlike Frodo, the typical adventuring party doesn't have a Gollum to (inadvertantly) bail them out when they mess up. So when they do mess up they do, or really should, have to deal with the consequences of their folly.
As the old saying goes, feces occur. How you deal with that is your business.