lol if u use pee u'll be in trouble , urine contain N true but it also contains other stuff like bacteria and other nasty thing that u don't want to get on ur plants . plus would u smoke if weed if sumone told u they pissed on it . jesus why would u even want to use ur own piss in the 1st place . if u can't afford the right ferts man at least buy cheap ones that will do to u get the better stuff. plus how much N is in ur piss , how can u measure it . please don't tell me by taste!!!