There's no excuse for drink driving and if you spot anyone who you think might have had one too many, the police should know about it.
Well, following a bump on the motorway, one diligent driver had that piece of received wisdom in mind - but made the fatal error of forgetting that he too was over the limit.
The bizarre incident was reported by Derbyshire Police after they were called to the scene following the crash - needless to say, both drivers were promptly arrested at the scene.
Sharing the story to Twitter, a spokesperson for the force wrote: "M1 J25. You couldn't make this up. Very minor collision at the junction causing no damage. One driver suspects the other is drunk so quite rightly calls us. Forgetting he is also drunk. Both arrested. One blew 40 and the other 78. Charged to court. #DontDrinkDrive #Fatal4 #Wow"
Stunned Twitter users couldn't believe the sheer stupidity of the two drivers.
One person wrote: "Unbelievable! Anyway, that's two more numpties off the road, well done!"
A second person said: "Well that's a new one... although nothing probably surprises you any more!"
Another put: "Two for one deal. Result. Everyone, please don't drink and drive, a minor collision could have been much worse."
"Oh my goodness. Just goes to show how much alcohol can impair your judgement mentally and physically! Fancy reporting someone else when you are over the limit yourself. Craziness. Well done Derbyshire Road Policing!!" added a fourth person.
It seems the UK's motorways have been in for an array of collisions in recent weeks.
Earlier this month, an HGV lorry driver pulled out into the middle lane of a motorway and crashed into another car.
The shocking collision was caught on a dash cam and shows Zbigniew Kaczorowski driving on the inside lane of the M1 before indicating to move over.
But as the 55-year-old, from Poland, pulls out into the middle lane, he smashes into the back left-hand corner of a white VW Sirocco, which is already travelling in the middle lane.
The car then spins round in front of Kaczorowski's HGV before being crushed against the grassy verge to the side of the road.
Miraculously, the two people in the wrecked vehicle reportedly sustained non-life-threatening injuries.
Kaczorowski pleaded guilty at Milton Keynes Magistrates' Court to careless driving on 11 March and was disqualified from driving for the next 12 months.
He was also ordered to pay £207 in fines and costs.
Featured Image Credit: Twitter/Derbyshire Police