I thought that too, but it turns out that there's absolutely no (legal) problem with a passenger manipulating the controls to a helicopter without a license or rating as long as the Pilot in Command is happy with the situation (and sitting at a set of controls also !).
Of course the PIC has to understand that his responsibilities are not altered just because he's allowed someone else to handle the aircraft.
Last edited by puntosaurus; 13th June 2011 at 16:57.
Reason: qualifying the term problem to mean legal problem.