It's slightly different today. Today, we see another in John's Parade of Misfit Clients.
Panel 1: We start off with Jean telling John that a "Brawling O'Brian" has arrived needing emergency dental care.
Panel 2: John rather nervously welcomes said O'Brian. It's easy to see why John's afraid as the man has a foot in height and 80 pounds on our boy so if he screws up, he could get broken in half.
Panel 3: John's fear for his safety increases as the hulking bruiser puts his meaty paws on his shoulders and says "Not so fast, Doc"...
Panel 4: ...only to be replaced by bafflement as the man whines pathetically about being scared. Ha bloody ha. A tank wailing "Save me from the scary dentist."
Hypothesis: We'll be seeing John not coping with another weirdo tomorrow.