In my work I sometimes have to go out of country to attend to clients, which is why I was on this flight once. It's not important why and where exactly, but it was a damn long flight. Luckily I was going on one of those airlines (don't say which) that hands out free drinks during the entire flight. I don't drink alcohol, so I stick to juices. And since everything is free, I'm not the only one getting refills. I'm sitting next to a german who kept drinking incredible amounts of vodka and got more and more talkative - and unintelligible - with time.
Anyway, what goes in, must come out. Sadly, I wasn't the only one feeling that urge: There was a long queue already forming in front of the bathroom. "Okay," I think, "there's gotta be more than one on this plane." So I go down the aisles through some other compartments where things didn't look any better.
I finally go to the business class section. You'll notice it right away: Different carpet, different seats, broader aisles and somehow quieter. I must've looked a little lost, as a stewardess asked me right away: "Can I help?" I explain that the bathrooms in the other sections are all occupied and I was just looking for a free one.