One of the stranger ones was a young couple, holding a small plastic bag wondering where they could stow it. The bag was about as big as a loaf of bread, and didn't look much heavier, so I tell them it'll fit in the overhead locker without disturbing the balance of the aircraft too much.
No thats no good, it has to remain upright. Curious, I ask if it contains liquids, so they open it up to show me... a couple of goldfish swimming around calmly.
All I can think of is to ask them how the hell they got it through the X-ray.
Then there's the passenger loudly demanding a Doctor - so he can settle an argument with his wife that he isn't on cocaine.
Or the lady who doesn't want the drink I've poured for her, as she's "allergic to ice."
Or the one , midflight demanding I go to the cargo hold and retrieve the scissors that was confiscated from him at the airport.