Poor Professor Witzig.  I believe this was the first strip where I used curved lines like the ones in the second panel to indicate movement -- that's something I've been doing for a long time, but I was hesitant to put it in this comic strip, because I'd way overused them in previous comic strips (and no, you don't want to see those).  After awhile, though, I decided this strip needed the lines, so I drew them in.  I've used them a few times since, but not that often.



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