Two friends from college dead on the way to celebrate the second's 17th birthday. The driver had been drinking to celebrate his 18th the day before. 17 year old was found half inside and half outside the vehicle - over a distance of roughly twice his height.
Best friend from year 7 killed whilst I was in hospital giving birth by a motorcyclist trying to avoid a drunk driver at 11am on a Friday morning on the wrong side of the road.
Ex threw a temper tantrum and threw the car around to scare me because I'd pointed out he was doing 60 in a 20 zone, missed a 84 year old man crossing the road by centimetres, old man nearly bled out in front of me where he cut his wrist open. Found out ex was drunk when I told the police I wasn't a pedestrian, the driver had left and they went searching for him. Dumped him - so he lost his licence, paid a hefty fine, lost his meal ticket and as he'd apparently just given up his tenancy in the hope I'd let him move in, ended up homeless.
Same person claimed previously when drunk that he'd helped his brother in law to dump and burn a car when BIL had driven into a 16 year old on a crossing after his usual 5 cans of Stella by 3pm. 16 year old never walked again. (no idea whether my call to the police was taken seriously or not).
DP - little sister of someone in his class killed when her brother rolled their mum's car down a valley into a river when drunk. Killed himself six months later.
His father rolled DP's car when insisting he drove back from a meal and hit a flock of sheep on the Moors whilst looking out of the side window, waffling about stars. DP had inherited the car a week before from his grandfather. Lost his job because he couldn't drive to work.
Your 'friend' is a fucking dick for even thinking about it. Don't bother showing them these, as they won't care. Just call 999 the next time they have been in the same room as alcohol and are driving back. Even if they aren't drinking, getting them stopped and breathalysed frequently enough will either catch them or they'll decide its not worth the risk.