Have you ever waken up during surgery?

i had to get all of my wisdom teeth taken out today and i was told it would take about a half an hour. i guess i was asleep because i only remember a few min of it. i remember being awake at one part and i could feel them operating on my bottom left tooth. the pain was excruciating and i remember shaking uncontrollably and then i went back to sleep. so im guessing i woke up in the middle of the operation. this ever happen to anyone else here?