We enjoyed our visit to Scotland a lot. We saw a lot of castles, very nice nature, a few hairy cows, little postcard towns, people playing bagpipes, etc.
We also learned a few things. Clearly there is a need to check your bill before paying in any restaurant or bar. The last few days of our vacation we started to check every bill we got, because my partner was fed up with the errors that we had noticed. Our check lasted a few days and resulted in 80% wrong bills which in every case had a few euros to much. The bills were never to low. After informing there was always some error that had been made without intent, but it happened so much it was obvious something was going on.