Was in the chippie last night and the lady politely points out that my card didn't go through the last time I was in. No worries says I, just add it onto tonight's purchase, after checking the wee paper slip.
One second says I....how did you leave a note that all staff would spot it was me? You don't know my name....
On the back is clear biro writing with a description of the debtor. One behavioural trait, one physical one.
Who can guess? (Yes, I am inviting you to mock me.)