But were they funny when you were doing it? I mean they're funny, but they're so negative I don't like to read them. At one point another PhD student printed out and put up one of them (it was the one which had a time plot about how you get more and more demotivated over time), and I actually took it down.
One of my fellow grad students related a tale in which he was his advisor was telling him to work on something and he wanted to know whether his advisor was going to help. His advisor's reply: "Let me consult Ph.D. Comics." (Said advisor has a sense of humor.)