Quote Originally Posted by A Very Super Market View Post
Letting urine sit in a toilet for a while makes it smell obcenely bad when you need to use it for more intensive procedures.

I learned this lesson in grade 4, Aussie.
Maybe you need to eat better, a healthy persons urine doesn't really smell that bad in small quantities, plus there is also a seat to put down and air freshener if you really need it. Saves wasting 5L of water disposing of something completely sterile.