Gents, I did not see the SC in question. Living, as I do, in Milwaukee, I can attest to the fact that it has become somewhat trendy to say, "Fear the deer," in reference to the Milwaukee Bucks. Yes, in fact, the Bucks are slated for the playoffs for the first time in several years.
I have not yet heard anyone use the slogan, "Fear the beer," in or around Milwaukee - though this may not be totally out of the realm of possibility.
Given the futile nature of the Milwaukee bullpen, I cannot fathom anyone other than a homer (certainly no opposing team in the NL central) fearing the Brewers (btw, they're the Cerveceros in Spanish). Trevor Hoffman nearly blew another save last night - it could be another long season for the Brewers.
The only fear I could possibly imagine related to beer would be if it ran out. I'm happy to report that in Milwaukee, there is absolutely 0% probability of this occurring.