Do you often get into sitcom-like situations where you are in two different meetings at once and have to make sure you avoid any unmute mishaps? I'm specifically thinking a case where you have to respond in a way that would make sense to both calls at once.
I don't think George Costanza ever had two jobs at the same time. He did have two girlfriends at the same time once. He found it exhausting, so arranged for both of them to meet in the same place(Monks), in order to sabotage the relationship(s). Neither of them were willing to break up with him.