When I was 13, I was the proud owner of a Winchester 1894 rifle in 30 WCF. I decided the stock needed some freshening up and read at the library in book that "boiled linseed oil" was what to use. So I bought some linseed oil at the hardware store and took it home. I put it in a pot and put the pot on the stove to boil it. Guess what happened? No, it didn't catch fire, but it turned into a very thick goo which tried to smear on the butt stock. It was indeed a learning experience.