I work with a former DEC (Digital Equipment Corporation) employee who told me this anecdote.
DEC was one of the earlier adopters of video conferencing technology, using it to host meeting between its campuses. The cameras in the meeting rooms automatically zoom towards who ever was speaking (presumably by detecting where the loudest noise in the room was coming from). I suppose this was a way to make it seem more natural.
This is all well and good, until someone accidentally ripped a big fart, and everyone on one side of the network knew immediately who.