This is brilliant! We always have those nice people that we just can't refuse. One of my nice acts was helping my friend study for a test. She asked if I could help tutor her, and being the nice person I am, I said yes. Low and behold, 5 hours had passed, it was nighttime, and she was still as confused as when we started. The moral of the story? If you don't know something 100%, don't teach it lol