When I was 18 I fell asleep during maths A level, my idiotic friend decided to hit me on the back of the head with his bag full of a level books (these things are thick) teeth hit the desk and my front teeth shatered into thousands of pieces b4 my very eyes. Then a years worth of painful dental work followed. Now I have some nice 400 quid teeth lol. Didnt pay for them thank god thx to nhs paying for dentals fees of uni students. Very painful though i had to pick up the remains of my teeth and put them back in my mouth so that the root wudnt die. One died anyway though had to have root canal surgery on it. But yeah if ur afraid of the dentist imagine what happened to me lol.