Read the excerpt from The Chaste Adventures of Joseph: A Comedy . MADAM POTIPHAR: She will be back in a moment. I brought her here to show her [Joseph], at work. But he is away somewhere, as usual. POTIPHAR: ( defensively ) He has other duties. MADAM POTIPHAR: Oh, yes, no doubt! POTIPHAR: What's the matter now? MADAM POTIPHAR: Nothing new. You know what I think about this Joseph of yours. POTIPHAR: ( irritated ) Now, if you are going to bring that subject up again—! Well, I tell you flatly, I won't do it. Which best described the tone of this excerpt?