Aver is an AI made from incredibly old and inefficient technology. He heats up if he thinks to hard, and so he comes off as stupid and lazy. As part of his cooling system, he releases a misted chemical into the air to cool the system from the outside. He will laze in the cloud if he has to do any serious thinking. The gas has been proven to be toxic and has become illegal since his creation, and is not recyclable. It is, however, a drug to many species, so Aver still has access to the fuel that gives him life as long as he can pay for it.