I did the same to a friend that kept knocking my home brew. I switched caps on a few bottles of Oberon. After he consumed what he thought was mine, he said while it decent, it tasted like an amateur attempt. When he tried my beer (which he thought was Bell's brew), he remarked just how wonderful this beer really was, and was not something I could repeat with my tools.
With a smug smile, I agreed and thanked him for the critic. I could not admit the deception.
With a smug smile, I agreed and thanked him for the critic. I could not admit the deception.