I was undercharged again today - while in a cafe with Mrs H seeking coffee and a light lunch. That’s the third time it has happened to one of us in the past month or so. In these days of contactless card payment I tend not to notice exact amounts unless a discrepancy is obvious but it surprises me how often the person behind the till doesn’t notice an undercharge until it is pointed out.
It’s the old mental arithmetic habit I suppose. One coffee, one tea, two lunches – no that can’t be right. The error flag seems to pop up in my mind without conscious effort then the mental arithmetic clicks in and out jumps the error.
As a cafe owner once said to me - contactless isn't like spending money. For the young people behind many tills it probably isn't like receiving money either. I wonder if it ever goes the other way - overcharged without noticing? I should check but the mental arithmetic habit would probably take care of that too. I hope so.