Plagiarism is bad.
In Ms McCafferty's book, a passage reads: "He was invading my personal space, as I had learned in Psych class, and I instinctively sank back into the seat. That just made him move in closer."
In Ms Viswanathan's book, a section reads: "He was definitely invading my personal space, as I had learned in Human Evolution class last summer, and I instinctively backed up till my legs hit the chair I had been sitting in."
And it makes you look like a dumbass.