I thought there had been a extant thread but a quick search didn't locate it.

Two weeks ago in the south a resto auto charged me in USD because 'the bank told us to charge in the cc's home country currency'. They apparently didn't read the part on the receipt that says the customer has been offered the option. It took them a good 10 minutes to figure out how to charge my card in baht but they were figuring it out in good faith.

The bank was Thana Chart.

Today in the north east at Tesco the same thing happened (auto charged to USD though there was no mention whether this was the default).

It's bad enough this happens at hotels but clearly it's metastasizing.