A photo from a demonstration (probably) note the uniform and rank belts. Perhaps is was just a photo shoot. Generally the Prof. did 'dress up' for training, rather it was more a relaxed with family feel.
"You got it baby?" "Relax, go slow" "Be Happy" "Go with the Flow" are some of the Professors regular sayings that leads to the 'Magic' meaning everybody had a good time and they were smiling?