With a particular group, and within that group, I can point to a particular person. We shall call him Tim, but his name is really _____. He'll probably never read this but maybe the DM will.
Tim should never be put in charge of weapons of mass destruction. But he loves playing battle mages. Though he also plays munchkined warriors as well.
My first introduction to Tim was when he fireballed a party member or two because they were within the radius of the spell effect. Of course part of the issue was a house rule requiring a skill check when targeting spells at close range when PC's were engaged in close combat, but that rule eventually was forgotten and yet Tim still managed to kill innocents.
Eventually he found a nifty new spell from the Scarred Lands and during a battle used this new spell on a city street. The spell replicates various dragon breaths and in this case he ended up killing 2 or 3 prostitutes who got caught in the area of effect.
Later, with the same characters he at least had the courtesy to ask if he could fireball me while I was engaged with some ice based creatures.
A crime for which Tim will never be forgiven was during the climactic final battle of a different campaign which resulted in a near TPK. Only his character survived and I almost walked away from the game. But this wasn't an ordinary spell lobbed carelessly. No, in this case we were fighting a demon in a secret lab. The two spell slingers, (technically I should be mad at both, but one didn't have a history of this) were running out of effective spells.
I suppose some could argue I was using meta-game knowledge to know that you don't use fireballs and lightning to hurt demons. But you know we'd fought demons before and you would expect people would learn their lessons about what spells hurt demon and which don't.
So when they got frustrated they instead started shooting at the cubes radiating chaos that were stacked around the lab. Eventually one exploded, which of course caused the rest to explode.
Maybe someday the shoe will be on the other foot.
