The famous story of (only) threatening to smoke that forbidden cigar, was it Nimzowitch ?
Off-board tactics

Fifty years ago, our club champion tapping his right foot on the ground and humming the Frisian anthem...
I've heard that Ruy Lopez wrote about situating the playing area in a way that the light was in the opponents eyes. Everyone recalls antics around Bobby Fischer's scanning the room for bugs and so forth.
So my question is, has anyone seen strange off-board tactics in their time, or know any more stories of historical significance to chess involving similair physical or psychological ways to get an advantage?
It wasn't only Bobby Fischer who seemed so paranoid. Didn't Korchnoi behave in a similar strange way at one point?
I've heard that Ruy Lopez wrote about situating the playing area in a way that the light was in the opponents eyes. Everyone recalls antics around Bobby Fischer's scanning the room for bugs and so forth.
So my question is, has anyone seen strange off-board tactics in their time, or know any more stories of historical significance to chess involving similair physical or psychological ways to get an advantage?