This sounds like the plot of a movie or a least, a prime time TV show.
A 47-year-old guy named Peirson Tone from Bend, Oregon was depressed a few years ago when his marriage fell apart because his wife had an affair.
So he went to the family doctor, a guy named Ronald Rosen, to get both counseling and a prescription for his depression.
But after the appointment, he found out who his wife had the affair with. And yeah, you got it: It was with Ronald.
So Peirson just sued Ronald for $2.9 million for professional negligence.
