Penalties for Wizards Using Guns

[sartorius]

Give them a chance of spells fizzling or backfiring if they hold a gun or have one in their inventory while casting, somewhat like how Arcanum did.
Magic missiles turn around and chase the wizard, empower horribly weakens the wizard or empowers a random person, rathen's revenge blows off two of the wizard's limbs, bull's charge sends them flying uncontrollably in a random direction, create golem makes the golem hostile to the wizard, teleporting leaves a random part of the wizard's inventory behind, so on and so forth.