Official Reference
Quote: FIREFLYBOB
Psychologists have established (and subjectively I think they are correct) that when humans become "maxed out" the first "sense" which the brain deletes is that of hearing. ie the ear (physically) hears what is being said but the brain says "hey am too busy to listen to that at the moment!".
May answer the question to a number of overruns, but do you have any
Reference Material to back this up?