I'm a little bit puzzled by this thread. In fact, I'm quite astounded that anyone could be "surprised" by an engine failure on take-off. Blimey, aren't we supposed to be prepared for that?
Typically, most accidents happen in the take-off or landing phase of flight, and this makes logical sense. And it should tell us something. I have made, by conservative estimate, over 50,000 take-offs in my career (10,000 hours at an average of about six landings per hour). And I can say with confidence that an engine failure would never have taken me by surprise. Why not? Simply because I keep that thought in the back of my mind, even when I am flying twins. Sure, there's a lot going on in any given take-off as you manage the various tasks, but the human brain is an amazing device. It can keep track of more than one thing at a time.
And it is not as though I fly around scared like a Chihuahua all the time. It's not like I've become a nervous, shifty-eyed paranoid, predictor of doom. Far from it. It's just that I've just come to an understanding about flying. An engine WILL quit, it's not a question of "if." Okay, I accept that. No big deal.
We must not be surprised by an engine failure - ever! But most especially we must not be surprised by it on take-off. That's our job.
There is so much more to helicopter flying than can be condensed into the Basic Helicopter Handbook. Posts like the one that started this thread and the other related one about autorotation entries go a long way toward enlightening and educating pilots about these strange machines and how they work. Good show!