It turns out Ashton Kutcher and his wife Mila Kunis do not believe in bathing every day.
In their recent appearance in Dax Shepard's "Armchair Expert" podcast, the talk turned to bathing and the duo revealed that they only wash vitals every day.
When Mr Shepard told co-host Monica Padman that using soap everyday rids the body of natural oils, both Kutcher and Kunis agreed, saying that they bathe their two children, Wyatt, 6, and Dimitri, 4 if they are visibly dirty.
Ms Padman was stunned and asked, "Who taught you to not wash?"
"I didn't have hot water growing up as a child so I didn't shower very much anyway," Ms Kunis said, adding that she wasn't that parent that bathed her newborns.
Kutcher added that the couple have a system in place for their children.
"If you can see the dirt on them, clean them," he said. "Otherwise, there's no point."