Yeah it’s from when they had to go see an autopsy I think.

Haha! I swear my net is acting weird and I couldn’t see your reply, otherwise I wouldn’t have added mine saying the same thing! 😛
Also, I see that image and immediately know the show. Pinocchio is still one of my all time favourites! <3

It’s when the new recruits were being shown the intestines of a cadaver during autopsy or something.