Carpentry and Woodworking - outdoor stain indoors?????

If anybody can give me an answer on this, I'd really appreciate it! I bought outdoor stain for my front door. The brand is Woodsman, and it's semi-transparent oil house & siding stain. I was originally told by the store that sold it to me that I could use it indoors also, but when I went back for more, they wouldn't even sell it to me, because they said it was dangerous to use indoors! I asked someone at another hardware store (very reputable), and he said that it's fine - he once stained a dining room table with it! Unfortunately, i've used quite a bit of it in my house already, and no one can match the color to finish the rest of the trim in the house. I'm putting polyurethane over it, which seems to me like it would seal all the harmful chemicals away. I've been asked already, and no, I haven't had any trouble with the polyurethane bonding to the stain. If it really is harmful, I will rip it all down and start over. But if someone can tell me with some certainty that it's ok, then I'd be so much happier!
Thanks! Aimee

Aimee:

I've been in the furniture busines for more than a few years, but that bit about the stain being dangerous to use indoors is about the biggest line of BS I've ever heard.

To give the devil (the store clerk) his due, ALL stains are dangerous when they're wet. After they dry they pose about as much risk as a feather duster.

The real culprit in most exterior stains in boiled linseed oil. It is prone to spontaneous combustion in concentrated form. Dispose of the rags used in application and clean up properly and there is no danger.

I've used various 'exterior' stains on furniture for years - and I haven't killed anyone yet - myself included.