We all know about the terrorists threat and whatnot & if you haven't flown, you at least have heard second hand how over-the-top the "People with the rubber gloves" take the issue.
This thread is a helpful thread to suggest things that people SHOULDN'T do when at the airport / on the plane.
a) Posters can only post a single helpful hint per post.
b) Posters must not post consecutive posts.
Here we go.
1) Don't say "stick it up ..... there" loudly when trying to convince someone to stow their carry-on luggage.