Don't trust your imagination

It was the best invention Milo had ever come up with. Far better than the automated dog walker or the self cleaning hamster cage. He marvelled at his computer chip creation; 'Jerry the homework completer'.
On the first day of term he fired Jerry up, ready to do his duty. He pressed the start button, watched as Jerry's arms jerked into life and his glassy eyes turned from cold black to electric blue.
"First assignment, please," said Jerry in a monotone, tinny voice.
Milo handed Jerry his homework diary, his english text book, a pad of lined paper and a pen.
Within three minutes Jerry had scrawled words across two pages; the answers to three questions on Shakespeare's Romeo and Juliet.
"Cheers, Jerry," Milo said as he took the pages from Jerry's tweezer fingers.
Milo had high hopes. He knew it was risky, not just because Jerry's handwriting didn't match his own but that he had no idea if Jerry had provided plausible answers to his essay questions. Not too accurate, but accurate enough to gain a good grade. He knew he wasn't the brightest light in the room when it came to arts. He was better at science. So he never bothered to read what Jerry had written before he handed it in.
When the moment came for Mrs Norris to hand back the essays Milo felt his palms get sweaty. His heart quickened and his breath became rapid and shallow. He was sure he'd been caught out. As Mrs Norris walked towards him a wry smile formed on her face.
"Well, well, Milo," she said. "Your essay was the biggest surprise of all, especially as it was the same sentence written over and over again."