Banned for the fear of going to the dentist and instead going to the vet and haggling over the price for a routine root canal and a quick tonsilectomy the vet wasn't qualified to do.
Then there was the woman who went to the dentist and said that she wasn't sure which was worst... having a tooth extracted or having a baby.
The dentist quickly quipped: "Make up yer mind lady... so's I know how to adjust the chair.