I hate when your friends quit drinking on you, don't you? It's sad. I've lost more friends to AA than Liberace did to the virus. It's sad to see 'em go. You see a thirty day chip on your buddy's key ring, it's like seeing a toe tag on his cold, stiff corpse.
The system that people work in and the interaction with people may account for 90 or 95 percent of performance.