Fresh second-graders are great about letting you know they're bleeding. Here is my conversation that led me to think I would make a great nurse.
W: Mrs. Overman, I'm bleeding.
Me: Oh no! Where?
W: Here, on my ankle. See?
Me: Mmm hmm...it is kind of bleeding! Do you want a band aid?
W: Nah. I can live with it.
Me: Well, I'm glad you're so tough.
See? I could be a nurse.