The frightening thing is that people post that they have actually done some of these things! And they have decided it was so clever that they think other people should try it, too! I wonder how many people who post about their awful bouts with food poisoning at WDW were using this type of "tip"?
I know you were kidding.
The problem is with the people who have just a bit too much, um, innovation? when it comes to this sort of thing. I have read all sorts of ideas that are icky and best and dangerous at worst.