As I found out, being a cool ass dentist is not an oxymoron.
My dentist has been fixing a total of at least 6 to 8 teeth before I leave to the Congo. She is VERY thorough (at little too much?) and fills any tooth that might have the pretention of looking like it might --one day-- develop a cavity.
Today, she mentionned that the last molar on the left side of my mouth really ought to be filled too. I looked at her with a frightened look on my face (the lady is really a little too enthusiastic about working on my teeth) and told her that my insurance didn't cover dental works that cost more than $XXX. Which is completely true. She responded, "don't worry about it, it's on me".
How cool is that?