Y'all just poop on the walls. According to the janitors on Reddit who have had to clean public restrooms - there was a debate on which restrooms were more filthy - the consensus was that women tend to have dirtier toilet seats & trash in the stalls due to 'hovering' & their monthly cycles but that men have a unique ability to sheet all over the stall - floors, walls, etc.
https://health.clevelandclinic.org/the-dirty-truth-about-hand-dryers