Unfortunately, there has been a temporal discontinuity between the departure
of the quadrupeds and the closing of the barn doors.
There's only two ways to *effectively* deal with this one:
a) Commence massive neural wipes of anybody who *might* have seen it.
b) Obtain *and* *enforce* a permanent injunction banning anybody who's already
seen it from meeting anybody who hasn't seen it in any establishment that
serves Guiness.
deCSS, anybody? 