Our chapter house used to receive frequent 'forkings.'
A tip to the would-be forkers of the world:
Dip the fork's handles in vaseline before you stick 'em in the ground, or in the alternative, stick 'em in the ground, then apply the vaseline. This made it a lot more difficult for us to clean up.
I believe after this happened to us a few times, some of our guys crawled up under the offending sorority's house and deposited raw hamburger meat. Within about two weeks (and during a national visit), the house smelled like death. I hear they almost got in some pretty serious trouble over this