How much have you pissed at one time is the real question.
A couple weeks ago, I needed to piss but I was stuck in traffice trying to cross the George Washinton Bridge. If anyone has done this at rush hour, you know you won't move for an hour. Well I pissed in a couple bottles, I filled 1 liter 33oz and 3/4 20oz bottle. 48oz of piss in one shit has to be some sort of record.