Anne & Jeanie, I think those rolling chairs should come with some kind of warning LOL. I do the Alzheimer's testing at our office and was getting ready to test an elderly man who had his wife & daughter with him. They're usually very nervous anyway because they don't want to hear the diagnosis. I try to be calming and professional. I walked in, introduced myself, went to sit on the rolling chair and Plop!! I went right to the floor! So much for professional! They helped me up and we had a good laugh but I was sore for days. My pride was more injured than my backside LOL.