Thanks to a friend for pointing Ol' Myrt to this gifted cartoonist Randall Munroe at http://xkcd.com. Randall is sorta a techie version of Gary Larson (The Far Side.) After clicking around a number of Randall's sketches, I discovered this one, and just had to share it with my DearREADERS.
Randall clearly labels his work as: "Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors)." His work is licensed under a Creative Commons Attribution-NonCommercial 2.5 License.
Search Randall's archives for Julian (as in Julian or Gregorian calendar) and you'll find a particularly telling story of yogurt.
Happy family tree climbing!
Your friend in genealogy.