The best plagiarism Dr North was presented with was when she was running a taught masters a couple of years ago.
The student had already got one plagiarism strike for “failure to reference” (i.e. copying chunks of papers from Google and passing them off as his own work). The next time, he handed in a print of the code from a programming assignment that was identical to an another student’s.
Dr North hauled him into her office and, in the presence of another lecturer, quizzed him about this. His simple explanation was that back home in India if you understood another student’s work, you could hand it in as your own.
Dr North, rather incensed, proclaimed “I might understand Einstein’s work, but I can’t claim that as my own..!”
He was sent down.