Sharp objects...

When Dreaded Middle Son was little, I'm thinking about 1st grade or so, he was very interested in sharp objects, mainly knives. He would take them from the kitchen and hide them. ??? I could never figure this out, I don't know if something happened that I don't know about, or if he was just facinated with knives. Did he feel threatened? Scared? I just thought he was a little bit of a kleptomaniac. He always denied taking them, even when they were right by him. Strange. I wonder if he remembers taking them, and if so, what possessed him to do it. Funny that he is in a profession that deals with knives. Coincidence?? I don't think so!