Andy is the only person ever recorded (by himself) to have a super saiyan scale of autism. When he's at level 2, he starts finger snapping (directly into the phone) and baby talking. Once he reaches 3, his speech is at full on baby mode, he begins to bang his head and accuse people of buzin him. This level is generally only reached when someone either suggests he can wipe his own shit ass, or if someone suggests he fakes.
Levels 1 and 2 are usually reserved for a new person he's trying to scam to get the diagnosis he wants or when he's antagonizing Tom or Joe.
He would put Daniel Day Lewis' commitment to shame. He's a more dedicated, though terrible, method actor.
He really is a piece of trash