Dude that's the only way to keep working. I've been on a couple jobs where there were people who want to ask questions all day. The worst is when you absolutely have to get out of the machine and they start spit firing questions as soon as the cab door opens. I usually told them my time was worth $2 a minute, they usually got the point, but the best way to avoid it is to not stop the machine if possible.
Go hard, go fast, or go home