There's a tendency, when you're directing yourself, not to give the performance as much care, because you feel like there's too much focus on yourself, or that all these people are just standing around setting everything up, waiting for you.

When we were doing 'Freaks and Geeks', I didn't quite understand how movies and TV worked, and I would improvise even if the camera wasn't on me. I thought I was helping the other actors by keeping them on their toes, but nobody appreciated it when I would trip them up. So I was improvising a little bit back then, but not in a productive way.

Acting is an art form and you want to take roles that are challenged and it's more of a challenge I think to play dark characters. Not that I want to always play those, but it is a challenge and challenges are rewarding and fun.

I might have to stumble a little bit more in public than others, but that's fine, I don't mind, I've developed a thick skin.

Am I ever going to be able to play football again? What's going on with my career? I was just thinking things like that. You've got tears going down your eyes. You've got your trainers right there and my parents right there. I was just thinking, ""Is this it?"" I didn't know what a knee injury was. I'd never felt pain like that.

The source and center of all man's creative power... is his power of making images, or the power of imagination.

A rock musician's career is short-lived. To extend it, you need to do other things to keep yourself fresh.

I can go and fight, take one punch, and have a concussion and start having issues with it, or I can wrestle my entire career and never have a concussion. It's just a hazard of the business.