Actually that's what I was subtly hinting at
Although we all heard the stories (as apprentices I guess)about cancer and MEK, I have never been able to confirm it through any literature.
As a chemical, of course, it needs to be treated with respect as per the MSDS, but MEK being a prolific carcinogen, with the sort of exposure that happens in the hangar, frankly seems to be an Aviation urban legend.
K