Has this ever happened to you? I just purchased a SD 9 gray. Took it to the local gun shop to test it out. It took a little to get used to the trigger, but no big deal. Came home and started to clean the rascal and to my surprise the front site fell off onto my table. What? This can't happen. I didn't try to move it. I just wiped it down. It looks like it was glued in. There was a white-ish substance on the wayward site. Tried to replace it and it went clean thru to the other side of the slide. I called S&W, lady will send me another. It maybe 3 weeks they are out of stock. What say you. Any other members have this happen?