"Don't panic! It's perfectly safe!" Roger was yelling down to Jessica through the water, ignoring their earbuds. Jessica knew that the liquid was MADE for breathing and that dozens had tested it before. They had survived, hadn't they? Silly girl with her silly fears!
"Relax," Jessica tells herself, "take in a lungful." It feels so strangely unnatural! Her heart pounds, pressure in her chest...she can't breathe! AAHHHH!
"Rog, this is control. Get her out! She's having a heart attack!"
Wailing, Roger hauls up her limp body. "Why didn't I listen? She told me! She warned me she'd be scared to death!"