Just an observation, here: the guy on the left is the fiction character Professor Garfield Goyle from Tales from Lovecraft Middle School #1: Professor Gargoyle by Charles Gilman. The other guy is P.L. Gaus, author of the "Amish-Country mystery" series of novels.
"Retired college professor P. L. Gaus lives with his wife, Madonna, in Wooster, Ohio."
Mmmm-hmmm. Let's see those horns, Gaus. I'm on to you.