If you were showering in your home, and you broke your shower and water was cascading everywhere, would you simply just wander away blithely, get some food, go to bed and go about your day, leaving your shower to spray water all over the bathroom whilst you just didn't shower for days and progressively got smellier? No. You'd call for a repair man or try to fix it yourself in fairly quick order.
But do sims do that? Heck no!