Well, 23 pages on from the OP’s innocent question, I must admit that I have learned much from the Burger-Eaters here ... for which I (genuinely) thank you.
Whilst I would never take my own food into J (or F, if I ever used it again) at least I have acquired a fairly consistent view on
where-to-get-a-burger should I ever feel that way inclined.
I also suspect that the Mods are secret burger-eaters, by allowing this thread to trundle on with recommendations for their next cholesterol-in-a-bun
