Sam Dilly, why do you have to make your opinion known (BIZARRE!) when you really don't know anything about airline or security procedures? A simple question would do without personal opinion attached.
Bacardi Walla- it is very unlikely some idiot 'handed over a note'. It is likely it was 'found'. Often written on the restroom mirror or discovered in a seat back. I hardly think anybody is going to say 'excuse me, but I've written a note- can you deliver it to the Captain?'