In my warm-up routine for teaching commedia dell'arte characters and physical characterization, we spend most of our focus on two things: warming up the spine and isolating parts of the body for specificity. This guy's video may have to become a part of the multimedia model for the class:
I PROMISED FART JOKES; I GIVE YOU FART JOKES.
I PROMISED FART JOKES; I GIVE YOU FART JOKES.