"Bob" wrote in message
...
My best friend has asbestos cancer. He was a school teacher and walked on
asbestos tile for 30 years.

But what was the cause? It may have been from some other source. He may
have been exposed to insulation being removed as a child, it could have been
many other things over the past 30+ years. Walking on tile does not cause
cancer, but breathing it in does. Old building were loaded with asbestos on
ceiling, heating pipes, etc. More information needed, but in any case, I
wish him the best dealing with it.