This is the best deterrent to stopping your friend from drinking and driving ever.

We've all seen the commercials of friends stopping their friends from driving drunk, usually taking their keys or calling them a cab. This friend, however, took it to another level. When his intoxicated Bro was determined to drive home drunk, the good friend intervened. When the drunkard continued to try to get into his car, the friend told him he loved him, and then promptly punched him. The blow stunned the inebriated man, but he got up. That's when the friend had enough and put him in a sleeper hold to completely incapacitate him. Sure he really put a hurting on his friend, but who knows, he may have saved him from a fate much, much worse.