Hopefully the answer is “every time you had to piss”. My preference would be for you to NEVER use the toilet again. Always piss on the bed. Soak every square cm. And if you are away from home during the day, save it up and hold it and make sure to bring that full bladder of hot yellow piss home for the mattress. Just the smell weeks upon weeks of piss soaking the unprotected mattress would make me hard as soon as I entered the door.
