All command courses should include the video reconstruction of the BA B747 that discovered flying through volcanic ash is not good for your engines nor your stress levels.
Mmmm. When the Purser came into the cockpit, Moody pointed at the instruments and said "Get the picture?!" (Intending to indicate the loss of all engine power, perhaps.)
The Purser went back to the cabin with no idea what was going on, wether a ditching was possible, or they were going to land. When passengers started donning lifejackets he joked "You must know more than me."
So .. maybe not.