I finally understand the DBZ abridged Pavlov joke!

Yeah, the joke is hilarious. The DBZ abridged series is pretty short, but really funny. I now understand the joke they make with Pavlov. So, Pavlov was a scientist who studied animal behavior. He would press a button, which would ring a bell, which would drop food for a dog. The dog, after months of this happening, started to salivate in anticipation of the treat. In the abridged series, Piccolo, a once evil person, had trained another character, Gohan, for a year, and kept shouting "DOOOOOOODGE!", and he kept failing to dodge, and always cowered in fear. In a big battle, Piccollo shouts it again, but to tell him to attack before a character has time to dodge, cowers in fear, and piccollo shouts, "Dang you, Pavlov!", and I now finally understand the joke.