For a while now you've suspected someone of something. Today, you find specific evidence that proves it's true. This may be a minor secret, or it could be an earth-shattering revelation. Be very cautious either way, because today isn't good for confrontations (which aren't exactly your favorite way to pass the time anyway). Hold on to what you've discovered and wait for a time when you can discuss things with this other person in a quiet, calm setting.