Bless the milk cow
More about Bless the milk cow
Go to a public place - Walmart, Starbucks, the movies, a mall... go about your shopping/etc. then randomly shout out "God bless the milk cow!" give it a few minutes then repeat. Try to do this as much as you can before anyone realizes it's you - when they finally do end it with, "God blessed the milk cow, yes he did!"