Re: Hey software, get the fuck out of the way!
What happens if they both press it?
I'd like to hope that the Captain has priority then. After all, it's the Captain's aircraft. Which seat the Captain sits in can vary between airlines, but once the plane is set up for an airline it shouldn't need changed until it changes hands.
That's how I would do it, anyway... All opinion. I'm the guy sitting in the back.