Just to set the record straight on WD40, I found this snopes page:
http://www.snopes.com/inboxer/household/wd-40.asp
According to the MSDS for WD40, there is no fish oil in the product. Ingredients are primarily petroleum-based (which to me means you do not want to be inhaling them over long periods of time):
http://www.wd40company.com/files/pdf...d494716385.pdf