Turns out the the beef we had with the Diablo III anniversary buff being only on consoles was premature, as Blizzard announces the PC celebration is now underway. And while the cow level may be a lie this time around in the action/RPG series, the anniversary will allow you to "encounter a bovine of some nature along the way." This post from yesterday now makes more sense:

There are no homicidal heifers. There is no invasion. And, more specifically, there is no cow level. Anyone who claims otherwise is full of bull and simply milking this terrible prank for all that it's worth.

That said, while the idea of some sort of "cowpocalypse" (as one terrified farmer has taken to calling this) is udderly ridiculous, it is worth noting that one can never be too careful. And so, after consulting with our local Horadrim chapter, we have elected to issue an advisory.

Effective immediately, we encourage all residents of Sanctuary to steer clear of the wilds. From dawn on May 15 to dusk on May 21, it is also recommended that you avoid entering any strange portals that may or may not lead to alternate planes of existence. This activity cud be potentially hazardous to your health and, in the opinion of this humble civil servant, is a veally bad idea in general.

In the meantime, we urge you all to stay calm and remember that cows don't kill people. Everything ELSE in Sanctuary kills people.