So in spite of being a doctor, I'm still a trainee and I'm not licensed yet. So every patient I see has to be "staffed" with an attending physician. Because officially, I don't provide care or make decisions, even though I do in reality. So I go and present the patient to the attending and then s/he'll go see the patient, bless my work (or change it) and then the patient can go.
So a kid came in to have sutures removed. I took a med student with me, had the med student cut out the sutures, and patted the kid on the head, gave him some discharge instructions and sent him home...
And
then realized that I hadn't staffed him with my attending.

So here's me going "Um...Dr. Cunningham? I just did a bad thing..."
Basically I got a "Don't ever do that again." To which I was like, "Yeah...I'm not planning on it...just like I wasn't planning on doing it in the first place."
Still, that's called "Practicing medicine without a license."