The answer will follow - in 2008!
UPDATE - 1/1/2008 - The Answer!
This was how things were...
Amos was being his usual difficult self. He wanted to get the Woolpack a glowing review from the Hotten Courier, and he wanted to quell the NY Estates workers, who were in dispute with Alan Turner. They held rather a loud meeting about their industrial strife at the Woolpack and Amos stuck his nose in, siding firmly with Alan. So the NY lads boycotted the Woolpack and other regulars followed suit.
But Walter remained.
Until the night when Amos set peanuts out on the bar (to impress any visiting hostelry reviewers from the Courier) and told Walter they were not for him. He graciously conceded that Walter could have one, and told him off quite fiercely when he caught him taking more.
Walter mulled the situation over, rapped on the bar sharply with his pint pot, and walked out.
"Walter! You can't!" said an aghast Amos. But he could. And he did.
It took a little while for Amos to discover he might be at fault, but an unpleasant experience at the local golf club, where he'd been taken by Alan Turner, set Amos thinking. Slagged off by a frightfully posh Major, who was positively fawned over by Alan, Amos realised that currying favour with this set was not worth it. And he realised who his true friends were.
Amos apologised to the NY Estates men and they returned to the Woolpack...
... as did Walter.
And the Woolpack was restored to its old peculiar normality.