There is a need for cleverness and resourcefulness here. After all, depleted uranium was once considered a waste product. Now it is valuable, to shoot at people on the other side of the world.
How unrealistic! Everyone knows that the real corporate lawyer would advise adding a poisonous spine warning that flashes whenever the device warms up enough to start hurling the spines. It might read: "This is an important safety warning that is required under Federal law. This warning has been deemed insufficient by the State of California and the Commonwealth of Pennsylvania. To read this warning in Spanish press F12. Warning this device may be about to explode and hurl poisonous spines in every direction. DUCK!!! Sorry, too late." Advice on downloading an update to the software that includes this warning should of course be mailed to each retailer who has sold the device, if they have registered and requested safety updates.