VISY Recycling in Springvale was on clean-up duty last week after a man smashed glass petitions in its lobby.
The man, who police believe may be an employee or former employee, visited the Princes Highway recycling plant at 3.45pm on 9 June and had an argument with a manager and employees.
He become aggressive and then produced a metal bar, which he used to smash glass partitions in the lobby.
When police arrived, the man turned on the officers and was subdued with capsicum foam.
The man, in his late thirties, was arrested and charged.