Ok, I edited this entire post cause I dont want it to be misunderstood. my hyper active dog obviously had some problems a while back. We're now doing bike joring, but recently the lead has been getting caught in my weels and either making me wreck, or jerking bridgit back hard enough to break a bone, so I'm looking for an attatchment to attatch the lead to my bike where that wont happen. She gets exersized daily, whether it's by playing fetch, playing ball, or walking. We walk everyday. Now she has rude behaviors which I totally understand it's my fault for not training her right, but I'm stuck. She slams into people's legs (in a clumsy way) after running around crazily for a while. She'll have spaz moments where she runs around the house crazily and jump onto our couch, somtimes when people are sittinh there, and scratches and cuts people who are sitting somtimes. She's just really clumsy. she doesn't ATTACK. Shes NOT at ALL aggresive. Just plays rough. She play nips and mouths us, and somtimes leaves bruises from that. I'm not here asking people to feel bad for me, cause I'll tell you right now thats NOT what I want. I'm posting here because I'd like to know your opinion on training, whether it sounds fixable or not and maybe a website based on behaviors like this. I explained it differently earlier and made her sound like an attack dog, but shes not, I promise. She just thinks she can push us around when it comes to play time. Thanks for all answers.