Moths and Cockroaches

Tony's Theory re; Actors and Lights (Moths and Cockroaches) Some actors are natural moths, they will always be exactly where they are asked to be by the Director and therefore make the Lighting Designers job much easier, particulary when using pin spots, etc. Others are cockroaches. You (the LD) may flood the stage with every light in the place and somehow, they will STILL HAVE A SHADOW ON THEIR FACE!!!! Then there are sub-species: super moths will always find light (no matter what the Director said during blocking) grrr moths will find everybody else's light (when they have no right to it, you know, the leading lady's spot gets hogged) Thoughts? Any further sub-species to add to the collection?