Edit: I got it backwards, meaning these are what I’d consider acceptable places to charge your phone.
Airport? Yeah but use a no-data charging cable.
Mall? I don’t see why anyone would care about that.
Restaurant? If it’s under your table or very close by.
Parking lot? Do they have outlets?
Stadium? Where would they be charging it at a stadium, maybe where the bathrooms and concessions are? If it’s out of the way I don’t think that would bother anyone.
Your friends house? Yeah unless they’re running an off-the-grid setup or something.
The office? Yes fuck the man.
Classroom? I assume they can charge it somewhere while in class, I’ve been out of there for a while though.