The amazing "Beast of the Field"

The "Beast of the Field" got into our garbage again last night ... my roommates and I figure its some sort of mid-sized animal - it must be a fair size to defeat all the safeguards we've put on the garbage can. The can is sealed, we have a rock the size of a large hardcover book on top, and two folding metal chairs leaned up against it on the sides that aren't covered by the corner of our deck. ... and yet, the Beast of the Field still manages to get the garbage can tilted over and open, and strews our garbage all over the deck ... if we're lucky though, the super-hot green curry my roommate tossed because he deemed it too spicy for human consumption will upset its stomach ... one can hope ...