Haha a great story. Very moody place.
The little balls of light only appear when you use your flash, right?
That's a reflection of the light, could be cause by raindrops but perhaps by dust or something.
I actually made a picture like that myself...... (see attachment)
I've also breathed asbestos 5 years ago. It seems that it's not dangerous unless you work with it every week or something. 1 load won't cause any cancer.... they say.
Edit: Dude, I was born in Europe. Do you homework.