From https://howardjbennett.com/about/

You might think that I’m an odd duck because most people who like potty humor are kids. However, I’ve learned that many adults, at least once they’ve had children, enjoy humor that relates to bodily functions. This probably happens because babies and young children spend so much time peeing and pooping on their parents. And while I have definitely had the pleasure of being barfed on by my own children, the other reason I like bathroom humor is because, as a doctor, I spend so much time dealing with (and dodging) icky, gooey things that come out of children’s bodies!

Please check out the context for yourself, I am not sure if this is of signifcance.