exploding wands

exploding wands

     Pointed out by <Someone>:  engraving with a cursed wand should pose a
risk of having it explode just like zapping does.  [At the moment when one
explodes, any existing engraving doesn't get changed.]  Suggested by someone
(<Someone>?) some time back:  explosion due to recharging could be consolidated
with explosion due to zapping cursed wands.  And noted by <Someone> in the
newsgroup:  '+' in an engraving--perhaps written by someone trying to leave
bones file notes--should have a chance of being partially rubbed out to '-'.