I have to say I have experienced a shorter fuse, and accelerated agression on Tren and Test. I am relatively laid back and avoid confrontations, but I have "flipped" or "raged" a few times when pushed to anger by some prick.
I am not one of these "ragers" who drives around hitting the steering wheel and flipping people off. I have however felt the sudden and fierce "rage" associated with AAS. Some people may not experience this or may think an asshole is an asshole, but since I have felt the "rage"...I know it is real.