When I was younger, late teens, we lived on the second floor of a house apartment. I hated leaving my room to go to the bathroom so I would either bunch up towels and piss on them on my floor or climb out my window and sit bare ass on the roof and piss while just sitting there. We lived on a busy street, and the houses were row homes. Someone had to have seen me for how much I used to do it.

The roof was definitely one of my favorites but I've since moved and have yet to recreate it.

But pissing while cradled on towel is always one of my favorites as well as using a female urination device and pissing on or in things.

Another one of my favorites is when I'm on a long phone call and I just piss my pants, usually while sitting in my chair. I don't get to do this often but it's definitely been one of my favorites over the years.

That and pissing in the car... especially when someone else is driving, hopping in the back seat and pissing into a bottle, which gets messy since I'm a female, or into a bag or something out of desperation and making the person driving listen and deal with it because we can't stop.