1. For that plate that folds (between the ramp and the front most panel), occasionally I push it backwards and hear a click and stops it. I keep fearing it will break, has anyone's done this? After the 7th change, the click got quieter, so I'm concerned. No stress marks show though. 2. Is it normal to scuff up the feet when folding it in and hooking it up to the arms in the transformation to vehicle mode?