Last night, with cigars in hand a neighbor and I opened a recently purchased (sometime in 2014) bottle of ER10. Something was not right and neither of us could drink it. We tried fresh glasses and left off the ice. Still no good. Can bourbon turn? Can it go bad? ER10 and Old Scout are by usual favorites so I'm used to the flavor profiles of both of these. Since we couldn't continue with the ER my neighbor had a bottle of Woodford so the evening was not lost. Should I comment to my local store or call Buffalo Trace to report this?