As most people probably know, there's a lot of card fraud now. Because of that, my company and probably many more in Sweden and Europe are enforcing stricter routines when handling cards. Now, if you do NOT have a PIN-code for your card, I will have to ask for ID. If that ID is from another country than Sweden, I will photocopy your card and save the copy with our copy of your receipt. Really, I'm not even supposed to allow you to buy things if you don't have a PIN or don't have a Swedish ID, but since the card is swiped before it shows that you don't have a PIN, this is the second step of security... I understand that people get nervous when their card is copied, and I'm not completely sure of the whys and hows myself, but I assure you; all records are kept confidental and it's for your and our safety. It is not because the evil cashier wants to steal your money.
I wish all companies would use PIN-codes.
Have a nice summer, and I hope all eventual travels are great.