I hear magnets don't work if you drop them in water, so all these people scared of magnets had to do was bathe regularly, but that was asking too much.
That and also the fact that many smooth objects will stick to your skin if you haven't washed the oils off of it. (To be fair, you can have showered that morning, but I didn't see any reason to be generous.)
This actually connects quite a bit for me. I was wondering why so many weird experiments popped up about magnets working/not working in water. Like why would anyone think they wouldn't?