I was trying to get into a 500m strip, which is short for me, but ok for our aircraft.
The approach was over a hill, I’m not used to passing low over a hill on short final before the land drops away to the runway infront, so it was my 3rd attempt (really the first one was just sighting, I wasn’t expecting to land off it) when my passenger suddenly LOUDLY exclaimed
“Down there…. Down there …” urging me to look.
Then said “a steam train!”
the only reply I could come up with was
”yeah, I’m a bit busy at the moment”.
Since that, I’ve briefed about sterile cockpit if I hold my finger up or look particularly busy