Holding my DSTT and moving it slightly there's a rattle, even just moving it a little bit like to insert or remove causes the sound. Clearly something is loose inside it. Fortunately it works otherwise. But I'm worried maybe something might go wrong later if whatever is loose winds up wedged someplace it's not supposed to be. Is there any way to open this up without destroying it and get whatever debris is in there out? Or should I just leave well enough alone? Returning it's not really an option, I don't want to deal with DealExtremelySlow again, and seems silly since it is working.