Fun fact: intentionally leaving pee on floors and toilet seats is a lesser-known but frequently-observed associated trait of Narcissistic Personality Disorder (NPD).
I guess it’s some kind of primal lizard brained “territorial” thing, I dunno.
For a while I worked for a shitty little marketing company that had, shall we say, a high frequency of narcissistic traits among the C suite. The men's room in that office was the worst I've ever seen in terms of there always being puddles of piss on the floor.
Also, a very large majority of the execs didn't wash their hands when they were finished.
I'm pretty sure they are either making shit up or regurgitating something that was made up by someone else. Most bad habits that people attribute to some personality disorder is just nonsense and you can fairly easily disregard it. It's like the asshole that says they're OCD because they think it means you're a little quirky.