I heard a keen type checkie once came up with the scenerio:-
* Loss of Sys A pressure NOT associated with engine failure
* Unable to land at departure airport
* Not enough fuel to fly gear-down to alternate
How do you get the gear up?
Answer- EITHER shut down NO.1, or else pull the breaker on the no.1 N2 gauge to fool the LTU into thinking you had an engine failure....
I think he needed to get out more...