I have a question about my Ithaca model 37 (16 gauge). If you fire a round and hold the trigger back while you work(pump) the action, the next round chambers and slam fires. So if you really want to, you can pull the trigger and pump that little shotgun as fast as you can four times and empty the gun....If you let go of the trigger after you fire (like you should do, and I do) it functions like it is supposed to. I am just wondering if this is normal operation, or something is wrong?