On Wednesday, May 1, 2019 at 11:32:18 AM UTC-4, Jonathan St. Cloud wrote:

I want to get serious and talk safety for a few moments! I intensely dislike ziplock bags for urine relief, you can put out someone's eye! One day in the back seat of a Nimbus 4D the guy in front threw his pee bag out the window, it flew down the side of the aircraft and entered my window, hitting me in the face. Good thing I had sunglasses on or I could have lost an eye. I use a 2 liter leg bag that seems to be good for flights up to 8 hours, not chance of anyone losing an eye.

- Urine relief and bag disposal are separate issues. My rule is, if I pack it in I pack it out. Only the water in the wings (if any) is disposable in flight. That's why I put a diaper inside the ziplock bag: after a few minutes all the liquid is soaked up into the diaper, and there is no danger of leakage into the cockpit even if the bag is later punctured. (But if it gets squeezed, e.g., under your butt, it will still leak.) What are you worried about: being caught with a full bag in the cockpit after landing? Nothing shameful about that. Normal human body function.