-How loud indie music can be in polite company.
-How close to the rim of a cup a hot liquid should reach.
-The length of time an unpackaged brownie can be deemed “fresh baked.”
-Whether posted hours are the actual hours of operation or more of a general guideline to be altered depending on something like a vibe, which I’m sure they have a word for other than “vibe.”
-Bangs.
-The importance of recycling.