You are absolutely right. When I did computer troubleshooting for thirty something years, I always worked standing up if I could and would stand up and walk around frequently if I couldn’t.

I had one asshole customer who wanted to know why he had to pay me for “exercise”, as he put it.

I told him I can’t think well when my butt hurts and if he liked, I could leave him alone with his computer issue right now and not charge him a dime.

I can be a real asshole too :)