It's so handy; just toss it in there with the change. Not as, ummmmm, "hurtful" as my other hardware, but always there when the others may not be.
Better to have and not need, than need and not have. I love this little gun.
You do not often need a gun, but when you do need a gun you really need a gun.
I also have the black powder version of this pistol. It is magnum sized. The best thing about the black powder version is that it can be purchased without getting governments involved. No paper work to fill out, no registration, no tracking of the purchase - even in Kalifornia.