Couple of ones for me: (pre-licence) taking off from a remote lodge as pax in the Rockies and hearing the pilot say "!!!! we've too much weight in the back, don't know if we can make it" and waiting puckered up as he coaxed her through translation with the trees just below us.
Highlight - taking my mum and dad flying in the R44 shortly after getting my CPL and her commenting, never ever thought I'd have a son who'd take me up in a helicopter and my dad just grinning!