Physical Danger
You're eating right, you're staying calm, and many of your patients trust you because you look, sound, and even sort of feel healthy. It's not exactly a recipe for disaster.
Of course, we're never really safe, are we?
What if you had a patient with a highly infectious blood-transmitted disease who neglected to note it on their patient sheet, and then one day you were eating olive oil for breakfast while holding a needle you'd used on him and your slippery fingers caused you to drop the needle point down into your foot?
And also you weren't wearing shoes because, uh, they were in the shop. Or something. Hey, just because there's no record of this ever happening doesn't mean it won't happen to you if you're not careful. So, you know, watch out.