Posted 2010-December-07, 08:08
Consider what West was playing for. If North is 4225, East is 3532. For East to get a club ruff, he must have ♠A or ♠K.
For us to beat the contract, we will also need a red-suit trick. Once East has taken his club ruff, declarer will throw his diamond losers on the clubs, so we won't get a diamond trick. Therefore (if we're trying to beat this) East has to have ♥K or ♥A.
If East had a spade honour and ♥KJ9xx, he would probably have overcalled over 1♣. Even with K109xx many players would have overcalled.
It seems to me that West was playing for the other hands to be approximately KQ10x AJ Qx KQJxx and Axx K109xx xxx xx (or the same hands with ♠AK interchanged), for East not to have overcalled when he might have done, and for East to have led a club when he might not have done. (Personally I wouldn't even consider leading a club from that. It's quite likely to be the opponents' source of tricks, and for it to work I have to hit partner with specifically ♣A or ♣KQ.)
On East's actual hand, a club lead looks normal. Clubs are now much less likely to be declarer's suit, and the red-suit leads both look dangerous.
So, insofar as there is any blame, I blame West. But declarer would probably make it anyway.
One other thought: if your partnership often leads doubletons, don't play these leads.
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
Help
Declarer can always get home with the right views 
1♣: Natural or 15-19 balanced.
1♥: Transfer-Walsh, 4+ spades.
4♠: 18 good or 19 hcp, either balanced or specific 2-4-2-5
The ♣2 was led to the ♣7, ♣3 and ♣J, and the defence was over.
Post mortem:
East: Leading into a strong hand, that migth easily be balanced, I lead the suit that would require least from partner.
West: The only justification for leading into a potential strong club-holding, is a spade stopper, and the hope for a ruff. Ducking is essential to preserve communication.
Shoot.