Kids are the target of “Scrub Club,” an anti-disease campaign that Minneapolis ad agency Olson created for Michigan nonprofit NSF International. The visuals are fun, but add the absurdly catchy “Handwashing Song,” a collaboration with Pixel Farm Music (another Minneapolis shop), and you’ll find yourself abluting your own paws with an almost obsessive-compulsive fervor. Check out www.scrubclub.org and see if we lie.