Just as the title, a student already causing serious problems pushed me when being moved seats in the room as a consequence. (I was just in proximity to her to speak, she wasn't being physically moved.)
I'm normally all for giving take up time and ignoring secondary behaviours, but she went too far and still has the wrong attitude. Utter disdain when I was appalled at her reaction and several attempts to dismiss and minimise.
She's going to be isolated, but she (and I think her mother) will likely treat this as a joke and an overreaction on the school's part.
What do I do with her when she comes back? Feel really let down and concerned that she (and apparently the most of the rest of the class) think this just boils down to their normal low level disruption of snatching each others pens and throwing sweet wrappers.