When Reagan gets upset about something he will let you know... it's just that you have no idea what in the world he's saying. He gets so worked up that he completely gives up on being articulate and reasonable, and also stops trying to control the loudness of his voice. If he is his father's son, then you can tell by the fact that neither of them realize how loud they speak sometimes. But I still love them both! Especially because I have the opposite problem and have just had to train those around me to turn their ears up.
I can't remember what he was upset about, but he's ticked about something... we might have been aggravating the situation a little bit more too (mean parents!)
(sorry the video quality is so bad, cell phone + moving car)