regaining night currency but not alone

Jack and Jill are both private pilots, neither is a CFI. Jack is out of night
currency, Jill is current.

Jack and Jill go flying at night under part 91, with Jack sitting in the left
seat (I know it doesn't matter) and manipulating the controls, while Jill acts
as PIC.

1) Can Jack log the time as PIC time? (I think yes, under the sole
manipulator rule)
1a) Can Jill? (I think not if Jack does)

2) After Jack has done three night takeoffs and landings to a full stop under
this scenario, is he current for carrying passengers at night? (it would
appear to me to be so)

3) Has Jack violated the FARs pertaining to carrying passengers at night? (It
would seem not, since Jill is the PIC and Jack doesn't even have to be a pilot)

4) Has Jill violated those FARs? (It would seem not, since Jill is night
current)

5) If Jill is confident of Jack's flying, and is herself competent, is this
stupid? (well, I suppose this depends on how well Jack and Jill fly)

Jose



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