Ok so I have the fisher price bouncer and swing in one. I put lo in it last night. Turned on the vibration. I was cleaning up the living room and my dog comes over to me and I hear a strange noise. I look back and the seat has gone backwards! LO was buckled in but he still slid down, his head almost touching the floor, backwards. It scared me so bad. I didn't think it was possible to go back like that. My little guy straightens his legs out and I think he pushed himself up and back. Just a warning to anyone with it that this can happen. I don't my little guy can sit in it anymore because he moves so much.