Arguably, their greatest weakness, however, is not physical but mental. In holding "lesser" creatures in such low regard, Alien Intelligences frequently underestimate the ingenuity of the sentient pets, slaves, and livestock below them, and have on more than one occasion been defeated and even destroyed at the hands of an unanticipated insurrection against their rule. Even the Old Ones themselves, far and away the mightiest beings ever to exist in the Palladium Megaverse, were lulled into a false sense of security, and were eventually defeated by a Megaversal uprising that they never expected. Furthermore, many of those participating in the rebellion were their trusted minions.