I could. Easily. Just not on a plane. There were many times when i was in high school we'd go up to NYC for the weekend to skate around the city and we'd stop and take a nap in Washington Square park right in the middle of the day.
Thats funny you should say that, as my experience has been that the women's bathroom was always the worst. By far. I'm not a germaphobe either but i prefer not to touch anyone's piss or shit.
I tried to avoid them at all costs, especially since most people are absolute dirtbags when it comes to helping to keep a public toilet somewhat clean. I mean, everytime i have to use a public bathroom why the fuck is there always piss on the walls and floor? Is it really that hard to aim it into a hole thats at least a foot in diameter? I'm convinced that most people are just dirty animals and nothing more.
When i did third shift work at 24 hour gas stations i used to use a garden hose with a nozzle on it to clean the bathrooms out....then i'd splash an entire bottle of bleach around on the floors and walls and sink and toilet and then i'd leave the door propped open to air dry it out. Both bathrooms done in 5 minutes flat.