Would you hire a Charles, or would you hire a CharlesPrime who does exactly the same thing as Charles minus all the time spent playing space invaders at work?
I've learnt that I concentrate wonderfully and solve problems while walking. I know other people see just a guy walking in an absent-minded way, but I'm working!
For me Charles and CharlesPrime are exactly the same example, they just do the same thing in different ways. If it isn't Space Invaders then it will be another thing, they both need time to think. Otherwise you are hiring code monkeys.
Honestly, I've been Charles before, and no one cared because the work was done well and on time. I was still responsive to my coworkers, but there were definitely periods where people understood I was recharging my "psychic energy" or whatever they thought made the magic happen.