I send the last post and THEN remembered another sighting.

 

On the old TV show Dragnet, there was an episode where they were in court

and they had a math professor testifying.  During his testimony he used the

slide rule to make a point of something and then when they asked him a question

he fiddled with it for 5 seconds and then came up with the answer.

 

just thought I 'd get another sighting in....

 

cjk