lets say a dentist uses mercury in his practice, and a fire breaks out, would that be dagenrous for the environment and the residents and the fire brigade who might breathe it in .

Secondly, a separate point, many dentists just flush the mercury down the sink into the local water supply, surely you dont have to be a 'conpspiracy theorist mercury person' to realise they should flush it down a separate water supply, that gets removed safely or collected by specialists who know how to dispose of it.

thirdly, if the answer to my question 1 is yes, it is dangerous, maybe people should start setting fire to dentists to finally get the message out

LOL, very funny

ever thought about Crematorium's?
ever thought about all that smoke, from all them dead bodies, with all those amalgams in their mouths and all that mercury thats stored in the body from the vaccinations.....all up in smoke and gently falling to the ground around the world. all the food we eat....oh lovely lovely thoughts

Also, I forgot the surrouding neighbours and neighbourhood who might breathe in the smoke of the mercury.

And yes, thast a good point , people who have mercury fillings are probably spreading it, through things like crematoriums and other things,

So according to those figures, coal burning power plants are a much greater concern. Luckily there are no coal plants where I am now but I think there was plenty where I used to live in PA.