 Somebody goes up, they come down, they go boom, his joint is swelling or whatever. Is there any sign that they have that they can tell that, yep, I better get to the ER instead of just going home and icing it? Right. You're going to have severe pain. I mean, you're not going to be able to do anything. If your lower back is injured or you have a fracture, I mean, there's nothing you're going to be able to do. You're going to have to come to the ER. Nothing else just for pain relief.