I have already had a couple of dark water spots that I have had to polish out of my razor so far so I have decided to try oiling the metal blade. I put some mineral oil in a small bottle and apply it to the metal after drying the blade off. The things is, when I take the razor out the next day, the oil has formed into little droplets on the metal. Shouldn't the oil provide a protective film instead of forming up into droplets?