During an online conversation earlier this week, I was suddenly laughing about how funny it would be for somebody to cast a spell on a cup as somebody is about to take a drink, causing them to spit the liquid out. The idea morphed into boiling the liquid, causing them to spray scalding liquid. Later I realized this would be a good way to disable a caster momentarily, by burning their tongue. As I was describing it to my group, a friend mentioned using this as somebody drinks a potion, thereby furthering the insanity!
Boiling Spit Take
School transmutation [fire]; Level bard 1, witch 1, sorcerer/wizard 1
Casting Time 1 immediate action
Range close (25 ft. + 5 ft./2 levels)
Target one held potion, flask, cup, or mug
Saving Throw Will negates (object) or Reflex partial (see text); Spell Resistance yes (object)
Boiling spit take causes a liquid to become boiling hot as it is being drank. A magical liquid uses the creature’s saving throw bonus unless its own is higher.
The creature drinking the boiling liquid instantly has the inside of their mouth and their tongue burned. This renders spell casting with verbal components impossible for 1d4 + 1 rounds. The creature may choose either to spit the liquid out or to continue drinking the liquid.
If the creature chooses to spit the liquid out, a successful Reflex save reduces the inability to use verbal components to one round. Pass or fail, spitting the liquid out creates a 10 ft. cone of scalding liquid that does 1d4 points of fire damage per caster level (maximum 5d4). Targets of this cone may attempt a Reflex save for half damage.
If the creature chooses to drink the liquid, they take 1d4 points of fire damage per caster level (maximum 5d4). The results of drinking the liquid are otherwise normal.