Here are some of the things I want you guys to know! Snowball is broke to drive, so I know its not that. Has had almost a year off of pulling the cart, but I have been ground driving him. He broke his harness because he freaked out when the cart bumped him when I was leading him with the cart attached. I think that the cart is too small, I will post pics tomorrow or the next day of him with the cart attached (pic from above his back). His butt is about 2-3" from the tree (I think that is the name?) here is a pic of him and my grandpa driving him. Help? I would love to be driving him! Because that's the reason I bought him, if I need a new cart, so be it!