Billy Unger

On 'Lab Rats,' I read the script probably three or four times before we ever even do a table read because I want to be completely prepared. And I want to know exactly which beats I have to hit and where I need to make something comical. Some lines need a little more than others do just to get the point across, to get the joke to be funny.

Honestly, I don't look at it as work because I have way too much fun on set to actually classify it as work. I know a lot of people who are like, 'Man, acting's so much work.' And I'm like, 'No, it's not. I'm having fun.' And I want to keep doing that. I don't ever want to give up acting.

I don't collect the way other people do. Some people collect rare guitars, like, 'I have a '54 Strat worth $50,000.' And I don't collect the way Nash does. Nash has Duane Allman's guitar and Johnny Cash's guitar. I bought guitars because they sounded good. I played them, they sounded unbelievably good, and I couldn't resist.

Five years after Aerosmith got back together, I realized how fragile we are as humans. There was a time I thought we were bulletproof, but then things happened and I came to the realization that I had to play every gig as if it was my last show. You have to start thinking that way, because you never know what's going to happen next.