My house is full of clutter. If I'm not making good use of something, I should throw it out.
Is my brain the same as my house? Things just sitting around there, neither thrown out nor used?
I threw one yesterday. It was sitting on the shelf in my brain so long that it was dusty, unrecognizable. It's not fair, to throw things at people, to throw things that are so old that the person on the receiving end doesn't even know what they are.