Recently I revisited a cafe where we celebrated Mother's day, but after leaving the place discovered they had overcharged us $37. Despite a lovely meal with three generations of Mum, the discrepancy left a bitter taste. The money was refunded with apologies and smiles.
So now months later I tried again, and sadly found that a simple order for morning tea was over charged by $10 on a $12 order. Now that is either unethical or very very careless.
Needless to say, we will not return.
I guess the moral of the story is: check your receipts before you leave.
Even if it means getting out that other pair of glasses and actually READING the fine print.