Dorothy: I took several art courses in college and I've also substituted in art appreciation classes in the public school system.
Mr. Allen: Huh?
Blanche: Mr. Allen, Dorothy was telling you about her background.
Mr. Allen: Oh, I'm sorry, I'm a little distracted. It's not every day a man comes home at lunch to find his best friend in bed with his wife.
Dorothy: Oh, I'm so sorry. That must have been quite a shock.
Mr. Allen: It was. Arthur's never come home at lunch before. He caught me red-handed.