It’s apparently Global Handwashing Day today and I can’t resist mentioning the British study (mentioned in the Guardian) that exposed men and women to signs cajoling them to wash their hands (“soap it off or eat it later”) in motorway service station toilets. Without the signs, 2/3 of men did not use soap (!!) and 1/3 of women couldn’t be bothered either. With the pro-handwashing signs, the researchers found that 12% more men, and 11% more women, used soap.

