Randomidous

(ran-dum-i-dus) n. a mental disorder usualy found in highly distracted indivudals characterized by socially unacceptiable (strange) activity, speaking or thinking out of context, drawing on napkins, walls, and small animals, inability to sleep. Often perceived as anti-social or misunderstood. Individuals with this disorder may experience hallucenations, creative diarreah, and may say random things and make random voices at any given time. Individuals with Randomidous should be handled with extreme care to avoid combustion.

(Randomidous is always capitalized)

When referring to a person's nature as random due to certain actions or thing they may say that you may find random.