Not to disparage the current incarnation...
Rumor has it an early prototype (from the OICW days) was demoed to a bunch of very high-ranking officers. One was given the opportunity to fire it. He took it, entered the desired distance, and pulled the trigger. It fired, the distance was automatically measured, and it duly detonated at the indicated range: 1 meter.
Sounds like an urban legend to me. I would bet these rounds have a safety device that stops them from detonating within a specified range, something out of the blast area like 10-15 meters. Our torpedoes have such a device why not a round like this? Some fool is bound to program 1 meter, or even 1 foot, into this thing. I bet the weapon won't even fire with that programmed into it.
Hmmmm.... a minimum range dial would be indicated...or perhaps an order to not issue to officers.