It may sound like bullsh*t to some!
It's one of the biggest taboos of family life - do not swear around the children for fear they'll make like a parrot and start effing and blinding all over the place!
But swearing relieves certain feelings & could actually be beneficial to children, according to an English Professor.
There is an argument that parents should shrug off any concerns about their children's bad language as it's all part of a process of learning and expressing themselves.
Michael Adams, Provost Professor of English at Indiana University in the US says swearing has many benefits like helping children to develop an emotional response to the world.
He also reckons that the risk involved in using swear words can help everyone (not just kids) to form more of a trusting relationship with another person.
It's an interesting theory no doubt, but we doubt it's an approach that'll be adopted by the stereotypical Irish mammy any time soon!