In October of 2006, Anne Greer took her father, Charles Gaal, 90, to dentist Dr. Wesley Meyers for implants to secure his dentures.
During the procedure Meyers dropped a medical screwdriver down her father's throat; it took a colonoscopy to have the screwdriver removed from his large intestine.
Then, in May of 2007, despite his daughter's concerns, Gaal returned for implants and Meyers dropped a torque wrench down Gaal's throat.
The 90-year-old was hospitalized for 50 days and died from complications.
Meyers was fined $17,000 and advised not to perform dental implants until he completes more training.
(Title unrelated; I believe it's a quote from an old episode of The Goon Show, if I remember correctly - that was a long time ago...)