Maybe the 25 was an old sherry-cask version and the 18 was a "fine-oak" aka Bourbon wood version ? Given your explanation, the 25 certainly was an older bottling, a 25y fine oak certainly doesn't taste like sherry.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .