Hell in a Handbag's spoof of Mrs. Garrett and 21 Jump Street is far from a drag. As luck would have it, the most expedient way to describe vanguard camp comic and longtime Hell in a Handbag collaborator Ed Jones to the uninitiated might just be "imagine Mrs. Garrett from The Facts of Life, only ten times Mrs. Garrett-ier." So it's an added bonus that this Halloween musical parody by David…