No idea if you already know these places (you probably do) but The Cobblestone, Peader Brown's, and McDowells are all great pubs that are perfectly happy serving a drink to anyone of any orientation.
Sorry for the bother if you already know.
Iron Rule
Hypocrisy Rule
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Rule of Left Psychology
Being Right Tastes Bitter Rule
Tutoring Depression Rule
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Overruled
Literally the actual plot rule
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Argentina Rule
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It had to be done. Them's the rules.
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Totally Not A Front Rule
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Orwell Mag Review Rule
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Rustule
Fair play to you