We've just returned from a lovely AI holiday. Staff were amazing, hotel was good... some of the other guests were horrible!
I had a row with a guy in the pool because he was clearing his nose and spitting it in into the pool next to him (we'd have called it hockling when i was younger - not sure whether that's an actual word!)
I told him to get out and blow his bloody nose and that he was disgusting. We didn't speak each other's language but it was clear what I meant and that he wasn't happy at being confronted.
Maybe I shouldn't have raised my voice but it was a knee jerk reaction - it was really disgusting!
Lots of other holiday makers not saying please / thank you to staff, pushing in at the bar or buffet. It's really put me off AI as it's definitely getting worse!