I remember the Rebbe thundering: “The whole Egyptian exile can be traced to Reuben’s ill-timed teshuvah! When a Jewish child is languishing in the pit, this is not the time to be worrying about your own spiritual state . . .”
And Joseph came to them in the morning and he saw them, and behold, they were troubled. He asked Pharaohs officials . . . Why do you look so bad today? But why would Joseph see anything unusual in that? Wouldnt we expect most people in jail to look miserable?