2 bottles of Krug, one faulty cork

After pouring a tall glass of Krug in an attempt to refresh the mind and palate after a night's work I found only great disappointment as I made a bitter beer face.  Shit! Despite the bubbles being lively and unharmed the wine immediately tasted terrible and oxidized.  After further investigation I noticed the odd looking cork.  I stumbled upon the cork from the first bottle opened (which I did not happen to taste) and set it next to the faulty looking one.  As you can see above the cork on the right from the oxidized wine is much skinnier and doesn't bow out into a mushroom shape like champagne corks normally do (hinting that oxygen was able to interfere much easier).