Back in early Decem­ber 2007, I sub­mit­ted one of my favourite Psy­chol­ogy jokes to Mind Hacks. The comic strip I sent in was duly posted along with some other inter­est­ing links:

Ivan Pavlov and Brian Wil­son — together at last! This rather unlikely com­bi­na­tion seemed to spark a bit of inter­est, so here is a brief col­lec­tion of your contributions.