Two hypotheses are chatting. One says, "you know, I'm not feeling very well."
The other one says, "Really? Maybe it's swine flu."
"You really think so?"
"I don't know - you better get tested."
Thank you, thank you. I'll be here all week. Tip your waitresses and try the chicken.
Having a Summer of Science Comics over at the blog. Come and play! http://upmic.wordpress.com/category/comics/