Anger to the point where the sufferer can't remember basic things like his name and how to form intelligible words. The physical manifestation of the rule, "Anger and information don't mix."
Guy: Finally, after 16,384 straight hours of work, the world's largest house of cards is finally complete! Now to call Guinness...
God: LOL EARTHQUAKE
Guy: Kug... fmmmb... grung... flmbml... FFFFFFFFFFFFFFFFF!!!!!
Other Guy: Oh dear. It would seem that Guy just had a rage fault.