Dilbert: I'll need to know if your device is compatible with our existing system. Salesman: It is 100% compatible with your system. Dilbert: I didn't even tell you what system we have. Salesman: That doesn't matter. Dilbert: It sort of does. Salesman: Not to me. Dilbert: So you don't really know if it will work? Salesman: I'm entitled to my opinion. Dilbert: Ignorance is not an opinion!!! Salesman: Please stay on the line for a brief survey.