There's a metal nib on the switch and switch housing preventing it from being bumped. There's also a spring holding it down so it can't bounce up. The distance and required force makes switching them at the same time impossible, thus the 1 second difference. This was absolutely an intentional act.
One can easily switch them with two fingers at the same time.
I tried (with similar switches.): Works. If the locking mechanism fails, even unintentionally.
Getting loose, wristworn jewlery snatched and then pull: Works.
My question to Boeing is:
Why did you cover the neighbouring (stabilizer cut-off, IIRC) switches with red springloaded flip-covers, but not the fuel cut-off switches?
