Are we prone to contagious urination and have we inherited peeing behaviours from chimpanzees?

Is synchronised peeing a 'thing' and could there be a benefit to it...

We shared a common ancestor with chimpanzees, our closest animal relatives, around six million years ago. Could we have inherited such a tendency, now dormant, from our primate forebears? Picture: Onishi et al.

Seeing someone yawn makes you want to yawn too. Laughing, sneezing, and scratching can also be socially triggered. But are we prone to what behavioural scientists call ‘contagious urination’?

It seems unlikely that we are... what purpose could peeing at the same time as somebody else serve? Urine carries valuable social information but we humans lack the nasal sophistication to unlock its secrets.