I will be forever traumatized by the cats we dissected when I was a senior in High School.

I think we got the bargain basement cats, because they still had fur and the veins didn't have red and blue latex like they were supposed to. We kept them for a whole semester in a janitor's closet in big clear plastic bags. When you'd open the door, you were faced with a pile of reeking formaldehyde soaked wet-furred dead cats. I will never forget that sight. Nor will I forget that smell.