When I was in high school, I had the most traumatic dental experience of anyone I know. Stop reading now if that sort of thing makes you uncomfortable.
When I was 15 years-old, I needed to have my impacted wisdom teeth removed. Since my mother was adamant that I shouldn't be "put to sleep" for this--as was the recommended procedure-- she found someone who was willing to take these teeth out under local anesthesia. This was a very bad thing for me.