In 2000, he was performing a colonoscopy on Vincent Pollifrone in his office (first bad idea) when Pollifrone died from improper drug dosing. Besides the incorrect dosing, the Doctor's private office was not equipped to save Vincent's life. I'm not sure what Bornstein paid Pollifone's widow.
To his credit, Dr. Harold Bernstein has since become quite an expert on assholes and Eastern European prostitutes.
As I was about to say...