i understand he made a bet with a collegue that he could tell a dirty joke on air (back in the days when that would have been impossible) without being censored.

the contortions he had to go through to adequately describe the scenario while maintaining the adult nature of the joke and while retaining the other controlling feature, overshadowed the comedy of the original punchline to the point of the stuff of legends.

in another interview, he was asking questions of a well known golf pro's wife (live, if memory serves). when asked if she does anything for him to give good luck before a tourny, she replied,"I kiss his balls". (remember, this is an era of at least overt innocence on the air). when everyone was still reeling over the original answer and the apparent innocence of the wife, without missing a beat, Jonny says,"i bet that makes his putter stand up!"

a master is gone and in good company with peter sellers et al.