The janitor is also, typically, the one who is going to sound the alarm first about things that need to be inspected in the building or further looked at. In a

The janitor is also, typically, the one who is going to sound the alarm first about things that need to be inspected in the building or further looked at. In a school district where they have custodial staff on the payroll (not contracted) there's also sometime a bit of on-call.