to PIC or not to PIC
so the aircraft is sitting on the ground with the blades turning
are you suggesting that you're not the PIC?
person walks out from behind you straight into the Tail rotor
now who's the PIC?
casa? unlikely
so if you are still accountable in all respects, then of course it should be logged as PIC, the blades are flying, the aircraft is static, there is still liability & duty of care/responsibility.