It wasn't too long ago (and still in the remote bush of Alaska) that if you took a "commuter" plane, it had no restrooms (such as the Beech 1900) and those flights *could* be about 2 hours long.
Speaking of airplanes and lavs...how about an old Air Force tale?
I heard a story once of a C-5 (very large cargo airplane that has 3 lavs, one of which is quite large) that was doing a fighter "drag" across the ocean. A fighter "drag" is basically a small fleet of fighters that are going across a large body of water with a tanker airplane or airplanes that act in essence as a "gas station" while in route. Usually, a cargo plane (or several) will leave a little before (or after) with the maintenance personnel and spare parts on board and will get to the final destination within a couple of hours of the fighters and tankers.
ANYWAY...so on one of these drags, the C-5 was cruising along when a F-16 fighter pulled up next to them to harass them for having such a large, "boring" airplane. After some bantering back and forth, the F-16 driver pulled away and did a series of very impressive loops and other tricks that were very fun to watch. He then told the crew of the C-5, "Did you like that? Too bad you can't do cool stuff like that!!!". Well, the pilot of the C-5 responded with, "Yeah, that is cool. I tell you what...let me show you something". Well, the radio fell silent for an extended period and then finally, the C-5 pilot got back on the radio and asked, "How'd you like that trick?" The F-16 pilot responded back, "Uh, what are you talking about? I didn't see any trick!". The C-5 pilot quipped, "You didn't see it? Well, I will tell you what I did. You see, I got up and walked to the back. I put some pizza in the oven and took a quick pee break. I cleaned up a little, sat at a table and ate my pizza and then went to the bunk and took a quick 20 minute nap. Then, I came back up here. So how do you like THOSE tricks?!?"
