The way you send your DNA to 23andMe is frankly disgusting: you drool into a test tube. Really. The tube has a line on the side, and you're supposed to drool into it until your saliva reaches that level. I was not aware that drool contains DNA, but apparently it does. Either that, or this is an elaborate ruse by the people at 23andMe, who actually obtain your DNA from your fingerprints on the test tube, and for some sick reason are collecting a vast supply of human saliva. Maybe they use it to fill a decorative fountain at the 23andMe headquarters. Or maybe they have some kind of bizarre ritual wherein they immerse their naked bodies in vats of drool. I don't know, and I frankly refuse to engage in unfounded speculation about the perverts running 23andMe.

— Lessons From Lucy by Dave Barry (Page 27 - 28)