stargazer02:
As you say, Captain Numpty is as likely to have a 777 rating as I am to be the next Archbishop of Canterbury.
Incidentally, my own record was joining the JFK congo line one particularly foul winter's night as No.54 (it went up to No.78 at one point).
We were on the ground for over four hours before take-off and I was only using the centre engine and the APU.
I do remember an old piece of folklore about an AA DC-10 crew who were using the wing engines in such a situation and forgot to start No.2 before take-off! They apparently survived this interesting experience.