Ethical Billing Question Let's say I have a project. And for some reason I have to spend 2/3rds of my time rendering. So I'm spending most my time sitting there, while billing the client hourly. I have to render - the project can't progress otherwise. Can't leave it to render overnight. Let's say I get a second computer; while rendering the project on that computer, I work on a different project project on the other computer, and also bill the client hourly for that - Unethical? I think so, but I can't decide.