Hearing goes first when you're tired?
Would you mind terribly citing your source for this claim? It's important because in the evolution of mankind there are two senses that NEVER turn off, even when we're asleep: Hearing, and smell. There's a reason that bitching Betty's are aural vs visual, and it's not because hearing is the first sense to go when you're tired. It's also why your smoke alarm makes noise, instead of blinking lights. You might be a brilliant pilot, but man, you're just making stuff up here.
Last edited by SalNichols; 10th Jul 2013 at 09:42.