The hell do I, I'd say I was anything but impaired while high. That is however the exact reason I don't drink!
I'll have you know I get nothing but grief from it; There isn't an alcoholic drink that I don't think tastes absolutely awful, and that doesn't make me feel like an idiot as it diminishes all my cognitive faculties.
I also strongly reject any comments saying that you can't use weed purely for the taste, or that to do so requires a lot of it.
If you're smoking get some glass, some wick and throw any tobacco you have away and you'll see what I mean. Most importantly remember that you're not obligated to smoke a **** load.
You can cook it too an achieve some fantastic flavours, again just don't use as much as you would need too to get high.