For dropping a pen? for waving at a fellow student as they enter the class slightly late? For turning in their chair when they should be listening to the teacher? For zoning out and not knowing what to do, so asking a fellow student?
These are all examples of 'low level disruption' that can lead to the Hub at DD3's school.
I have no concerns about my children. One was so dysregulated by being there that she had to leave and is now on an EOTAS package from the Local Authority, and my other DD is being very well accommodated by the SEN team, although out of school because she can't cope with it. However, that's my point, really. Both girls refused to go to classes, left classes part way through, etc., but because they display their SEN in quite a polite and passive way, they will never even get a behaviour point, let alone a detention or the Hub. Other children may have exactly the same needs, but because they displace their anxiety and display behaviours that are seen as 'low level disruption', they get Hubbed.
Some children are Hubbed, refuse to go back to school, then go back to school and because they have additional needs can't comply with the behaviour code and get Hubbed again. So their whole education is reduced to about 20% of school time.
I was a SEN school governor for over 10 years, across primary and secondary special schools, and mainstream infant schools. I would love to get in to DD3's school and analyse the Hub statistics. I bet it would show a disproportionate rate of boys and children with SEN being Hubbed. They advertised for governors recently but I can't bring myself to apply because I know that such analysis wouldn't be welcome by the HT and the SEN governor should already be asking those questions.