He's in a fountain, everyone. See the guy throwing a coin in? That's called art.
If you're gonna cancel class on short notice, send an email. If you can't do that, however, please take time to make a quick doodle of yourself exhibiting the symptoms of your disease. Points are awarded for the ferocity of your vomit/sneezing/sweating/other kinds of fluid expulsions, composition (notice how the scene forms a pleasing triangle, with the vomiter at the apex), and including one personal detail (here, a goatee) that lets your students say, "ha ha, Professor Baker is, like, totally blowing chunks in the fountain." Because apparently you're teaching students from 1995.