Alan Black entertained DAFers with the story of a unique prom date named "Mistress Water" and her cousins O'Rime and O'Clear...in story telling tones reminiscent of Garrison Keller he told of the astonishing properties they danced at various high and low altitudes and in a form called triple point too...The theme of this dance was Science Can Be Entertaining and we learned more about Margaritas then we thought possible...and clearly too many can result in three interesting prom dates! Thank you Alan for an educational evening!