You Never Know...

...who might crash your party:

Cows Crash Party, Drink Beer

"The herd made their way to a local home, drove off the human residents — who were holding a backyard party — and made straight for the beer."

[---]

"the cows took over the table, knocking over the beers with their noses, drinking the beer off the table."

Where's PETA when you need 'em?