Recently I noticed that banks began securing they ATMs against skimmers: ATMs display a picture of card reader with a message "Please make sure it looks like the one on the picture. If not, don't insert your card and call us."
To be honest, getting money from an ATM is one of those activities I do largely on auto-pilot. I couldn't guarantee I would actually read each screen, more I know what to look for and hit the big withdraw button!
Perhaps it's time to take a little more care with this particular activity.
I wonder if this works.