I like how people come into my office at work to announce we're all finished with a project. The fact of the matter is the pronoun needs to changes to you're all finished. I still have several hours of work yet to do on it for it to get ready to go out the door.
I especially love when people make this announcement when the project is a week late. Yes, indeed you are done with the project. I still have more to do on it and every minute I spend doing your project is a minute I have to make up on the other work I need to do.
So to lighten the mood a little some Peanuts: