"Isolated acts. If you are subject to a single incident of unreasonable behaviour, it’s unlikely to be classified bullying. Addressing the behaviour before it is repeated is the best way to manage the situation; conflict in the workplace can progress to bullying if left unchecked."
The notion of isolated acts requires some consideration. Our experience at the University of Newcastle is that there may be many isolated acts that combine together into bullying. For example, you speak out about staff misconduct/unethical behaviour - you are ostracised by one of your colleagues, then the next, then the next. Then any complaint you make to the Head of School gets no response. Then individuals throughout the uni in various relevant positions (e.g. PVC of the Faculty, DVC of Academia, Head of Human Resources, Vice-Chancellor) all individually decide to ignore/ostracise/not respond to you.
Surely all the individual acts of bullying (such as at this University) combine into an even more destructive and hazardous form of bullying and make reporting/complaining about the bulying behaviour even more impossible. You have to take on the whole university machine, not just one person who has repeatedly bullied you.