"I thought it was a booger, but I guess it's not."

Eating snot is not socially acceptable, but it IS common.

This raises the question: WHY?  After all, in The Big Book of Gross Stuff, I share that some people think that eating boogers is good for your immune system. And look, here's a whole chapter from another book that's devoted to this subject. (Thanks to BoingBoing for this charming idea; the comic at top is by Ted McCagg.)