Anyone who thinks support staff don't work hard should ask the site manager what time they open up, what time they close up, and how many days off they had during the summer "holiday" 
There are some people that just cannot see that a school is an entity that requires staff at all levels to do their bit, not just those that are public facing.
And yes- I am "support staff", I have a first degree, a master's degree, and twenty years experience. I am well paid compared with many that share my job title, mainly because I was headhunted for my role, others are not so well paid or appreciated.
There have been many, many evenings when I have been working past midnight, 5, 6, 7 days a week, and I am not unique. "Staff" means all staff. Teachers aren't able to do their jobs alone; everyone in a school is working hard for the best outcomes for children.