The Joker had been playing this for sometime. He had corrupted one of the catorers hired for the party, an had been weighting hidden in the van for the last of the guess to arrive. Then with the party in full swing he unleased his joker gas. But something
went wrong. The gas mixed with Pam's dust caused the guess to start an orgy.
The Joker hadd intented to grab Harley an rob an terrorize the guess. But now he needed a fire hose to ply them apart,