By RNZ
It is just one of the warnings to thousands of students taking part in O-week activities that range from campus tours to mardi gras.
There will be an increased police presence at some known student hotspots around New Zealand and police have produced a guide to staying safe.
Dunedin Crime prevention manager Senior Sergeant Craig Dinnissen told Checkpoint if your friends say you are "being a dick" then it is time for a glass of water.
"If what you're doing would get that frown from your mum or your dad or your grandparents going 'what the hell were you thinking?' - that's not acceptable behaviour," Dunedin Police Senior Sergeant Craig Dinnissen told Checkpoint.