I was covering a high school biology class today. I overheard the following:
"They say that blood is blue in your veins because it hasn't touched the air. But when they draw it out into that tube, it isn't touching the air, yet it comes out red. Blood is never blue. I don't believe it. It's a damn lie!"
On the one hand, at least the topic was biology related. The problem (besides the obvious)? Today's assignment covered ecology and biodiversity.
Sigh. Freshmen. I guess it could have been worse. She could have been a senior.