They are there to keep you amused in trying to open them. This also takes your mind off the fact that you are flying 3 km up (or something like that!)
Why do you never get a full can of coke on a plane?
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Well it ain't no secret
I've been around a time or two
Well I don't know baby maybe you've been around too
Well there's another dance
all you gotta do is say yes
And if you're rough and ready for love
honey I'm tougher than the rest
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