I was walking between periods with my friend, when these ducks started chasing us no even joking so ofcoarse we ran and I thought it was pretty funny so I laughed. One of the schools ground staff then called us over as he thought we were 'harrasing' the sucks. When I tried to explain the situation he's yelled at us and called us idiots and then said 'I can make your life very diffucult here so don't get smart with me boy' I know this is a threat and have explained the situation to my parents I am wondering is this illegal?