Madness string 82921

Random mermaid
That's why it takes two to cover the whole simplification! Just like the universe is just reduced to energy and language, everything can be blamed up nature or nurture, chemistry or society. The other 'cheap' summary is 'blame the parents', which is basically the same thing but badly written.
Based on the name and this situation, I assume a piss disk is when you pee into a shallow saucer, freeze it and then slide the frozen disk under a door so that it melts later and forms a pool of urine in someone's apartment.