Read this.

Let's sum it up quickly before I move onto the math.

A dentist inserted fangs into an employee's mouth while said employee, also a patient, was under general anesthesia. Pictures were taken of the practical joke, and then the fangs were removed. The rest of the procedure was carried out as normal.

The employee was given the pictures, freaked out, sued the dentist, and settled for $250,000.

The dentist, then turned around and sued his practice provider, who had refused to defend him in the original case, and won $1,000,000.

Net total = $1,000,000 - $250,000 = $750,000 + the memories of a hilarious and profitable practical joke.

Well played, Dr. Woo, well played.