Pax who when exiting aircraft leave massive amounts of rubbish over the seats and floor. Scrunched up paper used to plug ears and those ear cleaning things!? Remove the sick bags, spit in them, through them all over the ground. Spit on the windows!?
Going to the bathroom in their seat is always a favourite.
Pax who have gone fishing/rolled in dead fish before boarding aircraft. There is nothing like the smell of rotten fish and BO in a C210!
Front right seat pax who decides to move seat all the forward making it awkward to adjust engine controls and cowl flaps. (any remote pilot will understand)
Gotta love remote life!
As said above the expert PPL holders are always good for a laugh.
And what is with remote teachers thinking they are God!?