The "amphibibulentist" thread reminds me of days of silent movies, when some actors
had little behaviour items that were not copied by others. I mentioned the guy who in every
movie would spit i;nto a cuspidor, which would "precess" wildly in a foot wide circle several times.
Another guy with a big fat belly would butt adversaries with it, rendering them hors de combat.
Can you think of other examples, and the showbiz name for an actor having such a "signature"?