Training, May 1990
Five years later, in 1995, I re-drew this gag, changed the caption from “fax” to “email”, and sold it to The Wall Street Journal. I'm fairly certain that WSJ rejected this version. Go figure.
I guess it pays to keep up with messaging technology — I fully expect to see a similar cartoon in the future with the words “text message” substituted in the caption, but I won't be doing it.