I think everyone forgets that the point of T here is to raise your levels to a normal male level. So if normal male levels meant raging beasts, then we'd probably still be back in the stone age. Or something.
That being said, I was a laid back person to begin with and I'm still laid back. There is only one thing that really pisses me off, and to be fair, now that I'm on T, it really pisses me off but I think that's more because I allow myself a little emotion now. Before I just shut everything off in order to not feel pain.