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What? No it doesn't. When people say "No bare ankles or shoulders", that doesn't mean it's ok if you bare both of them.

"No food or drink" is a good one, so many possible misinterpretations between or vs. XOR, and how you scope the "not".

I think he means when it is used like "coffee or tea?"

The answer to that when one wants both coffee and tea is "yes" rather than "no".