Cornish maid

I realised on Sunday that I had broken a back tooth. Made an appointment for today for the dentist to look at it. Went in, with the tooth not troubling me at all...came out £120 worse off, with a totally numb mouth. This evening I have raging toothache.....I am sure there is a moral to this tale....and it isn't if it ain't broke don't fix it, because it was broken, he fixed it, and now I am in agony!