So apparently:
"I thought they opened themselves, these days"
Isn't what you're meant to say when the stewardess asks you if you are familiar with the procedure for the emergency exit door.
@garius in defence of Boeing it wasn't an emergency exit door that opened itself.
That it was a permanent seal in place of an optional emergency exit isn't great, I grant you, but the fact remains that no emergency exit door opened on it's own.
@trelane @garius Sarcasm. I wasn't trying to offer a genuine defence of Boeing.