Coming to a reboot near you:
Spells that can start fires (Burning Hands, Lightning Bolt* and Fireball)
will soon be able to target objects in the caster's room.
> cast 'fireball' fire
> You start to concentrate...
> You throw a fireball at a fire.
This new casting option will only produce an echo at first, but certain
objects may soon start reacting to the spells.
Casters shouldn't have to worry about this giving unexpected results,
because characters are always targeted before objects.
(An earlier version of this post claimed otherwise.)
* Lightning Bolt causes a spark that can ignite fires.