I had one of those a year ago. Lady driver left hooked me, nearly spilling me onto the pavement. I caught up with her at the next set of lights and banged hard on the window only to see she was about 80. I was all for a full on rant, but when I saw her frightened expression, luckily I calmed right down and just explained she needed to slow down behind cyclists then turn behind not in front of them. Not sure the message really sunk in, but I felt like a prize prick for the initial shouting and window banging. Most of the close calls I have are with older drivers, whenever I see one I try and give as much distance as possible. Some of them clearly shouldn't be driving, but that's another thread........