Unfortunately, the previous owner counted to five after removing the pin, which is right out.
We don't actually know exactly what will happen now if it's thrown, or dropped, or roughly handled. Apocryphal accounts speak of "the universe being torn a new one", but "one what?"
Perhaps we'll never know. Or maybe we will, if it's thrown, or dropped, or roughly handled, or slightly jostled.
GET ON WITH IT!

Oh, okay. Here's a Toothbrush of Scrying. Don't ask me why. It's a regift.