Old Doc Yak

It's Old Doc Yak by Sidney Smith circa 1912 or so. I saw this on Barnacle Press quite a while back, and was considering incorporating him into my strip, just for fun. Sort of a tip of the hat to the old days. Strange, thinking of just totally reusing a character someone created with no legal ramifications. Not only is it public domain, I'm sure there's no one alive that would give a damn.

All I know is, I don't like the look on Doc's face in panel two.