Organic Fuel
Permanent link to this comic: http://xkcd.com/282/
Image URL (for hotlinking/embedding): http://imgs.xkcd.com/comics/organic_fuel.png
[[Man sitting at computer second man standing nearby]]
Man at Computer: Wow – Engines can burn vegetable oil.
Standing man: Well, sure. You can burn most any organic matter. Corn, leaves, spices...
Man at Computer: Spices? Really?
Standing man: Sure – Mussolini made the trains run on thyme.
Man at Computer: ...
Man at Computer: We are no longer friends.
{{alt text: I have nothing to apologize for.}}