I feel like many anesthetists think that a trainee needs to learn to "fly on their own." Which is true, but they can do that with me in the room. I remember I was doing a case, I think it was a posterior cervical fusion. I told the student "This is your case, the goal here is for me to do as little as possible." So I sat back in the corner and watched. A while into the case, "Uhhh Valentine..." I looked over the drapes and I could've done a swan dive into that incision. The surgeon was panicking because they couldn't get the bleeding under control. Called the anesthesiologist to inform them of the situation, no answer. Had to send the student to find ANY anesthesiologist. Luckily one of the surgeon's partners was operating across the hall and they came in and tag-teamed it until they got the situation under control. Patient did great but they had no major comorbidities, just a liter and some change lighter in a handful of minutes. I cannot imagine ever leaving a trainee alone. Could've been a terrible terrible outcome with a stranded trainee.