I had one good one where a guy sends me 5-6 key books with detached centerfolds. Asks if I can "get them " attached again. I said only real way was to tape the tear around the staples, bu CGC will treat the book as if the tape wasn't there, resulting in the same grade and notes.
He proceeds to say that I misunderstood him. He wanted me to remove the centerfold, take the next wrap out. Put the centerfold back in out of order, and then the wrap where the centerfold should be. His reasoning...who follows the story or looks at page numbers.
Needless to say I didn't do the work asked, but I did let CGC know of our conversation.