Rules established by the Colorado legislature generally prevent marijuana stores from advertising on TV, and most broadcast stations are being ultra-cautious about considering such business, regardless of the time of day. But Mile High Pipe & Tobacco has found a way to share its highly potent message on late-night cable without causing the city's social fabric to fray. Recent sassy clips, including a Christmas spot featuring a particularly hazy-looking Santa, showcase glamour shots of Mile High's "glass with class" in a wry but restrained manner unlikely to offend anyone burning the midnight oil, so to speak. Put that in your pipe and smoke it.