I noticed something on my bike today that makes me a little concerned. I went on a 50-mile ride today with brand new brake pads, front and rear. While loading the bike at the end of the day, I noticed that the rear brakes are about 50% gone already and the front pads are worn pretty good, too. We rode through a lot of water today. Two weeks ago, we rode through a lot of water and mud. The next week, I noticed that the brakes were all but gone, front and rear. Has anyone else experienced this kind of thing? Could wet, somewhat muddy conditions cause brake pads to wear extremely fast? When I put the new pads in, I lubed the pins on both the front and rear brakes to allow them to move as freely as possible. I'm asking this because I'm wondering if this is something that I should just expect from riding in wet and muddy conditions, or should I investigate the brakes further to see if they need new seals, pins, etc.