The artist back then are the biggest shit posters ever.
Imagine getting payed a lot of money to create art for a rich baron, proceeds to unintentionally or intentionally include profanities that is funny for some reason.
Especially the guy stepping on another mans mushroom.
Are they? Considering that some paintings take long weeks to finish... :p
That just means, they are the most dedicated to it.
A master piece takes a while, is a shitpost of the millennia.
Either that or they get lonely and bored so they make funny references on the painting and hope the patron doesn't notice.
Here is a example of romans, but granted everyone was shit posting back then not just artist.
You think he wouldn't notice such a big part? :D
Interesting about those paintings is that everything is there for a reason and has a meaning.
The groin kick is the most lethal weapon known to man during the medieval era.