If you hide it yes
If you sneak it in, i recommend 7/11 hotdog and chips
No .
Only if you have a medical condition some people can't eat certain things.
If you sneak it and start eat when is dark no one will realize
If you do it secretly.
Small packets of nachos/chips- yes..i had carried once. Not sure about popcorns..i have seen people carrying backpacks too..
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