Screaming J
He'll put a spell on you
Surely harveys (and southern style bitters) are meant to be flat (well not fizzy).
The pint that i had at the gillingham game was fine, was from one of the little mobile beer stands.
That's the point. If you get it from the mobile stands its poured while you wait, and isn't waiting around already poured going flat at one of the big serveries that also sell pies etc.