It's all in the name

While I am used to mistakenly trying to use my driver's licence to take money out of an atm, today I tried to use a Woolies card in the serve yourself in K-mart.  The machine then haemorraged and the lady had to come and press all sorts of buttons to make the machine work again.  I used my card again causing another haemorrage and was caught by said lady who informed me what I needed to have was a flybys card.  Silly me.  I am sure she thought that I suffer from dementia.  Actually it is possible that this is the case.