Verbal stammerers are easy enough to interpret. For instance, when a stammering school headmaster says, 'You're going to get the cocaine,' we anticipate a dose of corporal punishment more than we do a drugs push. But what about people who develop a stammer communicating with sign language? In signing, the word 'coat' is got over with the action of hefting a coat over the shoulders (although how you then finesse that to say 'jacket' or 'jerkin' is of interest, or yet to be pioneered). The signing stammerer will however put on many coats. The message is ambiguous. His audience will be left wondering: 'Am I communicating with a stammerer or somebody with a circulatory problem?' (Continued at http://www.tinybangtheories.com/2012/03/hardest-word-to-say-is-stutter.html).
Best Wishes,
Paul (Ed.)