Cumbria Police say 'Don't spend Christmas with the cops'.
They've begun a campaign to encourage party-goers to be sensible with drink and don't get into potentially violent situations.
The force says it follows a rise in violent crime - there was a 23% increase in the six months to November, compared with last year.
The campaign features film clips of officers talking about being called out to fun festive nights which have turned violent and ended in a police cell or hospital.
Superintendent Justin Bibby said: “What we certainly don’t want to do is tell people not to have fun – everyone deserves to enjoy Christmas and take the opportunity to celebrate with friends and family.
“While the majority of people do act sensibly, there are unfortunately others who become violent. These people can see their nights take a dramatic turn from the good time they hoped to have.
“Do you really want to spend your Christmas in one of our cells? Or worse, in hospital? Or do you want to spoil the next night out because you are banned from all pubs across the county?
“We hope that our Christmas messages, which will come from a range of different officers, will make people think more about these possibilities. These are situations which could easily be avoided if those involved walked away from a situation before it got to the point of violence.”
Cumbria’s Police and Crime Commissioner Peter McCall said: “Christmas is a key time for families and friends to get together and enjoy themselves, and this campaign isn’t about putting a stop to that.
“However, it is about asking people to behave responsibly and not overdo it to the extent that the fun descends into violence, with all the potential negative consequences that might bring. I hope everyone can have a great time but show respect to those around them including everyone doing their best to keep them safe.”