NUance is the type of guy who wonders about different things than a lot of guys do.
Apparently, it runs in the family. Yesterday my six year old son asked, "Dad, When you cut a piece of paper in half with scissors, what happens to the little bit of paper right in the middle? Does it just disappear?"
I think this is an awesome question. I've actually spent time thinking about it myself, in the past. I mean, a pair of scissors isn't sharp at all at atomic dimensions. The scissors are really just making a fine, directed tear in the paper that appears to our naked eye as a straight cut. So when to two blade edges shear by each other, tearing the paper, I'm sure some molecules of stuff that make up the paper get scraped off and caught on the scissor blades. Then they probably rub off on the next piece of paper that's cut. Hey, it's something to think about.