Talking about it and dealing with it at 6 in the morning after an all night flight for the first time at 2 miles with the captain descending at 3 thousand feet a minute with very narrow window of time are two different beasts. You can't just talk about this kind of stuff it needs to be trained regularly for guys in this part of the world. As an instructor both light and jets I can't tell you how many times I have sat and watched guys with a disconnected ap horn blasting away yelling checklist items back and forth. Never canceling landing gear warning horns stuff like that. When something like this happens the pm can be drug into it just by not comprehending it is being taken this far, which it self can cause inaction on the pm's part. Think about it, as an fo how many times did you have to physically take the controls from your capt. In my 20k plus career I can think of only 1 time from an experienced captain, and I was really surprised it happened.