Has anyone ever had the grab handle at the door break when using it? We did, both fittings broke when someone was using it to climb the steps. Fortunately they were not hurt but it could have been bad if they had fallen. It is the large one that folds closed when traveling. I think it is a Stromberg Carlson. I am hesitant to replace it with the same one. Any suggestions? I hope the factory and the manufacturer see this. I have sent a nasty gram to S.C. Bill