I have a good dentist now, but I never went to a dentist for many years because of a childhood experience. I was getting a tooth pulled. The dentist froze it, a while later he poked it a bit and asked me if I could feel it. I said mmm...a little bit. He said “you mean no!” and proceeded to extract it. I let out a painful yelp, and he then gave it another shot of freezing before continuing.?