Weed is classified as a hallucinogen. That means that you hallucinate while on weed. While hallucinating your judgement can be impaired. Thus, you might not see the car that your about to run into, or you may not be able to comprehend that your path of exit is on fire. Please, I respect you opinion, but Before you view people below you, get real facts. Just because someone on yahoo answers says carrots are purple doesn't make it true.