I feel bad posting because of the recent tragic bridge accident but head's up on 2 scams still being done in 2018! Gas Station Inflation and Restaurant Extra Charges.
First, while fueling up our car on a major highway at a name brand station (TotalErg) on the Self-Service Side, the attendant came and helped pump (saying don't worry - no full service price) and was overly chatty but then spilled a little gas at the end (all a diversion I think). Then went in to pay, saw the clerk inside type in 66.xx into the credit card machine and I said "no, it was 55.xx" (I could still see the pump) and then pretended like it never happened, re-keyed in 55.xx to show me, and then proceeded to remotely reset the pump to 0. I think the scam is to charge the full service price and most tourists probably don't notice the difference until later. (BTW, if anyone knows how to report this to the correct Italian authorities (in English), would be grateful).
Second scam, eating lunch later that same day. Bill comes and says 47 euro written on a piece of paper. It sounded high and asked to see the details. The waitress took me to the manager who elaborately entered each item into the front register and after several minutes came up with 37 euro. He then apologized that he must have miscounted. It's possible it was a genuine mistake but it seemed really shady. If nothing else, they were writing a bill off the books.
4000 km drive across Europe and only 2 scams, both in the same region.