He's an incredible actor. What's great about him is that when you're playing opposite him like in the Christmas mall scene - he is so convincing. I was in character and just angry at the way he was speaking to me and speaking at Harmon. Afterwards when I was no longer in character and saw the scene I was just laughing hysterically. He's so funny....but at the same time such a good actor. I still crack up at the "f###ing space cadet " line