Don’t drink or drive, because lives will be on the line. If you’re going on a night out with friends where alcohol is involved, then it’s always best to assign designated drivers beforehand. That way, they’ll drink less than their limits and everyone will get home safe and sound.
As a means to promote designated drivers and reward them, Budweiser UK embarked on a campaign involving Twitter and a knitting robot called Knitbot. The Knitbot is powered by Twitter in the sense that it only knits ugly Christmas jumpers (that’s ugly Christmas sweaters in the US) when someone tweets updates containing the #Jumper4des hashtag.