Can't function without caffeine in the morning.
I've done most drugs under the sun, with few exceptions (Heroin, Ecstasy), never became the slightest addicted to anything. I enjoy pot and videogames, but nothing happens if I go a few days without weed, one hour without coffee seems like an eternity.
I broke my arm a few years back and had surgery to fix it. First I was prescribed Vicodin, that really didn't do much except make me constipated, then I was prescribed Percosets...the good ones. Built up a tolerance scary fast so I was careful to watch myself.
For me, I drink proper beers, smoke a little weed, drink my morning coffee, and maybe have a cigarette or two on Friday night.