person A: I had a dentist appointment yesterday.  I hate going to the dentist!
person B: I understand that completely! Did you have to get any work done?
person A: Yes I had to get a filling in my very back tooth.  THe dentist said I had a very deep cavity and to raise my hand if I started to feel anything because it was very close to my nerve.   I was scared the whole time.
person B: That sounds scary! I always avoid going to the dentist until I absolutely have to. I know that's pretty bad!