What would you do if you had to serve a Karen?

Karen is a cold-blooded lawyer and a cheating wife who does not care. After winning a case that'll leave an elderly couple on the street, she invites her soon-to-be ex-"dog groomer" to dinner, where they have a falling out, and she decides to stiff the restaurant. Though the restaurant was nice about it at first, Karen did not make it home that night. Instead, she wakes up in a table-turned situation with her server from the night before. Will the server out Karen the Karen?