Now, you're certainly making a good point here about bladder capacity. Why is it that no one in any of these over-long science fiction epics ever says, "Excuse me, but I have to go to the bathroom. Where is it?"
DROID: "There's only
one on the Death Star, sir. It's on Level 1189X3, right past the Coke machine. Take the elevator 68 floors down and turn left when you get out."
SITH LORD: (jumping up and down while holding his crotch)
"What!? I'll have you busted down to a water cooler or my name isn't Darth McGonagall!"
DROID: "It's not
my fault, sir, the budget didn't call for more than—"
SITH LORD (knocking him aside): "Get out of my way! Or I'm going to wet my..."
(Cut to yellow puddle forming around his boots)
SITH LORD: "Oh, too late— Gawwddammnit, these dry cleaning bills are going to
kill me!"
Then you have the "Star Trek" one-piece jumpsuit (from "The Next Generation" onward). How do you get one of
those off so you can use the Men's? Or for that matter, the Ladies? Of course, I would have been happy to help Dr. Crusher with that problem... there's a zipper down the back, I suppose, and you just
peel it off slowly, like a banana skin.
The Nobel Prize winning author/playwright Samuel Beckett was once asked how to get a character offstage, convincingly. He said, "That's simple: you just have them announce that they need to go to the loo."