We too experience this (and still do, my son is 11mo), and it is a total nightmare. I had to get it on video, because the amount of screaming and flailing around is unbelievable!!! I am literally sweating by the time it's all said an done. I have resorted to laying my leg lightly over his tummy, I know its kind of extreme, but I can't stress to you how much he fights. It truly was making a disgusting mess during poopy diaper changes. Sometimes I can get him to watch the ceiling fan, but it's really hit or miss. I hope he grows out of it soon because I absolutely dread diaper changes (and clothing changes for that matter),