How not to manage your classroom

Very beginning of class.

Me: Sally, what's wrong?
Sally: I don't feel good, can I call my mom?
Me: During class? No. I can send you to the nurse and you can call from there.
Sally: I don't want to go to the nurse. I just want her to come pick me up. Please?
Me: No, just go to the nurse. That's proper procedure. I can't let you use your phone during class.
Sally: But miss! I don't want to walk all the way to the nurse just to come back here when I could call my mom from here.
Ellie: [Budding in] Just let her miss.
Sally: Please? [Makes sick face like she might vomit at any time]
Me: Fine. Go, do it now, outside. Hurry back in.
Sally: Ellie, let me borrow your phone.

20 minutes later
Intercom: Please send Sally to the front office, her mother is here to pick her up.
Me: You got it.
Intercom: What?
Me: Yes ma'am. Go on Sally.

Lesson:
I need to stick to my guns. Even though this worked out (kind of), I cannot let the students push me around like this. When I say no, I have to stick with it. I just need to learn which battles are worth fighting. And I did not want vomit in my classroom.