mine did too. She was riding on my dh and decided to jump off, he caught her, but his arm slipped from her pit to her hand and dislocated her shoulder and elbow. Better than letting her fall five feet I guess, but very uncool none the less. We went to the ER, the doctor came in and popped them right back. after that, she wasn't in any pain at all I don't think. She used it just fine and wasn't crying or complaining about it. They then did X-rays, and saw nothing was broken. But I remember her being fine right after the dr popped it back in.