Fluffy is the name given to an intelligent weasel discovered by David Fanshaw that lives at Brundage House. Fluffy's intelligence is purely a product of a neural growth chemical treatment. He remains mute but clearly understands human speech. In any case he's quite useful around Brundage House; the tunnels for the apportator monorail no longer have a problem with rats. After repeated discussions with Bricks he mostly refrains from digging burrows in the gardens.