the index finger used to prevent sneezing (aka
sternutation) by placement under the nostrils, above the top lip of the mouth. Most famously seen in Dopey, of the Seven
Dwarfs. Also used by the Jupiter Group at Westerlin in their attempts to reach Jupiter by the
year 3000.
I was about to sneeze all over "Slightly
Off Center: Selected Works of
Otto Von
Grieg," when I remembered the Grieg Finger, and all was saved. I got the nostril thrill!