Ever use one of those convenient new touchscreens to make your McDonald’s order?  Well according to a new study from Great Britain, you should probably keep a bottle of hand sanitzer nearby when you order that Big Mac. Metro UK conducted a study that found fecal bacteria on every touchscreen they tested, including potentially dangerous ones like staphylococcus.

Even more alarming, the paper observed that most people who ordered with a touchscreen would grab their food without washing their hands first. McDonald’s has responded to the report, saying “Our self-order screens are cleaned frequently throughout the day. All of our restaurants also provide facilities for customers to wash their hands before eating.”

Have you used one of these self-serve touchscreens?