I came up with this a few weeks ago, and demonstrated it at yesterday's Jersey City housefilk...

I have developed what can only be described as the Neutron Bomb of Filk: it gets rid of all the people but leaves the building standing.

I would ask for forgiveness, but Leslie Fish is on record never forgiving, and Richard O'Brien probably doesn't care.

( And if you know who both of those are, you'll get the joke... )