I get home today and there's a file on the kitchen counter. I say to my wife, "What were you filing?". "Huh?", she replies. "What were you filing? There's a file on the counter", says I. "Oh", she says, "I couldn't find a hammer".
At this point, I was a little incredulous and replied, "You were hammering with a file!?". "Yeah", she says, "would you rather I had used one of your chisels?".
She had me there.