I developed some chemical sensitivity after working in photo
darkrooms starting at age 15.  Doing some home CPVC plumbing work I
got the MSDS for the cleaner and glue for that and MEK was one of the
main ingredients.  I suggest anybody who is going to use that to
check out the MSDS on it to know what you are dealing with.  It's
easy now due to the internet, back then I had to call the mfg and
they sent me the papers!

Also, when working with a lot of chemicals pay attention to what kind
of gloves you use to protect your skin.  I worked in a lab once,
where the chemists were using chloroform with gloves that looked
substantial but provided little resistance to that chemical.  One of
the chemists developed skin cancer on her hand.  That's what got
people looking into it.

Edward