That makes sense. But it gets more difficult when posses consist of more than just insane clowns. I suppose when you're talking about a posse of insane clowns, the odds of it containing sane jugglers are pretty small. But when you're talking about an insane posse of nondescript clowns, the posse must consist of at least half plus one insane clowns. The other clowns can be anything in between.
But this is assuming that a posse can only be described as insane if at least half of the posse needs to be insane to make it an insane posse.