พลเมืองดี... being a good citizen

I was riding my bicycle back home this early evening to find an old lady tipped over from her wheelchair! Well.. if you can't imagine what I saw, please picture an old lady (a bit chubby) lying on her back and her feet pointing up in the air. Definitely her wheelchair tipped backward when she was rolling it off the footpath, I thought. 2 other Japanese guys and I were coming that way, so we stopped and helped her getting back on her chair. The funny thing was that one of the two japanese guys asked this auntie whether she could get back up herself. Then maybe he realized afterward "oh .. you cannot, huh. otherwise you probably are on wheelchair...!"