Client: We’d like you to work overtime on this project. Right now you’re only here 40 hours a week; we’d like you to work 50-60 on it.
Me: Well, the current contract you set up specifies budget for only 40 hours weekly, but I’m sure we can make some arrangements. I’ll have to talk to my agency about the bill rate for the overtime, though.
Client: Oh! Don’t worry; that won’t be necessary. We don’t want you to actually bill for the extra hours, just work them.