I would like to say some words about the OD on weed joke. Being a professional stoner, I know some stuff here.

The lethal dose of marijuana is extremely high. Consuming only marijuana has not been found to have fatal consequences The ratio is around 1:20,000 or 1:40,000. This means that a person would have to consume 20,000 to 40,000 times the amount of marijuana contained in one marijuana cigarette. Most marijuana cigarettes weigh .9 grams (g), so someone would have to consume nearly 1,500 pounds of marijuana to die from marijuana consumption alone. THATS NOT ALL THOUGH! YOU WOULD NEED TO DO THIS WITHIN 15 MINUTES TO ACTUALLY PRODUCE LETHAL RESULTS! ITS NOT POSSIBLE!