cleverly disguised as a responsible adult

Just got asked why I'm studying an anatomy textbook. I say, "I need to do histology of mouse hearts, I figured I should know what a heart actually looks like." Of course, this is an equine anatomy text from a 1963 printing of a book published in 1953 (the Fourth Edition, even) that Boss bought for $15 during his vet school days.

That's all.