Also miss the wacky Pyramid lectures, and his chalkboard/whiteboard that would start out pristine and empty, but by the end of his rant would be totally covered, to the point of being opaque and unintelligible, with his squiggles, lines, diagrams and words, with the most-recent gibberish often written directly on top of that which came but minutes before.
"Weird, wild stuff" - Johnny Carson