My local theatre is awful with single seats. I turned up 30mins or so before curtain up to get a ticket, but the only stalls tix available were either pairs or groups of four. They wouldn't sell me a single seat as it would leave another single seat, or a group of 3, and that's their "policy". How ridiculous is that, 30 mins before curtain up? They'd rather have 2 empty seats than 1.
theatres like this deserve to go dark for their stupid policies.