To Wash, or Not to Wash

Countless "research studies" show that the number of people professing to wash their hands after using the loo far exceeds the numbers of people observed in the act. I can see random strangers in divey bars and bus stations readily dispensing with the time-consuming anachronism of washing your hands after handling your anus, member, and/or balls. What I don't understand is a coworker in a small office flagrantly doing this on a daily basis. Especially a coworker who finds enough time to brush teeth after every meal/snack. Seeing this individual later hand packages, shake hands, and high-five someone over a sports-spectating triumph, I can't help but see his urine-saturated hands performing these activities. I have never been an informant, but I am tempted to go Elia Kazan on him.