A Gateway drug? That sounds like Dell propaganda! Really, marijuana will remain a gateway drug as long as it's illegal, and people have to buy it from drug dealers. This panel is from The Marijuana Mystery, a 1991 comic found at Comics with Problems. If you don't want to read the whole thing, the main point is that you should not practice your gymnastics routine while high. Duh.

It’s part of the collection of links, jokes, and videos on Marijuana, today at Miss Cellania.