ethical question

Is there a point in parenting when shame and anger are appropriate teaching tools? I don't mean on a daily basis, or as a first line of defense. I mean, is there an infraction serious enough to warrant loosing your cool and dropping both the f-word and the sh-word on your child?

Could that point be, perhaps, when one finds a sizable fecal smear on the wall in the hall?

Please say yes.