Weird arena result that may be relevant to this thread:
I was experimenting with Deon's cold-breath. Not thinking about creature sizes, I made ice weasels. In the Arena they weren't that deadly against human-sized creatures, and always ended up mutually annihilating with unicorns, so I was trying to crank up their breath.
And ended up fast-destroying corpses.
At the end, a dwarf or even unicorn would usually break off before killing the ice weasel, and take a bit of stumble bumbling before they'd die… and then they'd flip to a corpse and vanish in maybe a dozen ticks. (Also, I tweaked the boiling point so instead of sticking around it just boils off shortly.)
So, a new method for suicide booths: the reaction creates a wild vermin with this attack, and
not immune to cold damage. It sprays the operator, it gets covered as well, maybe generating some cancel-job-too-injured spam, then the dwarf dies and their corpse vapes. Put this at the end of a long tunnel, and the freeze liquid should boil off before anyone shows up; the offending operator should remain "missing" indefinitely. (Or in the bug case, their body will be "found" whenever someone shows up at the spot, body or no.)
Material template:
[MATERIAL_TEMPLATE:DEON_COLDBREATH_TEMPLATE]
[STATE_COLOR:ALL_SOLID:AZURE]
[STATE_NAME:ALL_SOLID:solid dragonrime]
[STATE_ADJ:ALL_SOLID:solid dragonrime]
[STATE_COLOR:LIQUID:AZURE]
[STATE_NAME:LIQUID:dragonrime]
[STATE_ADJ:LIQUID:dragonrime]
[STATE_COLOR:GAS:AZURE]
[STATE_NAME:GAS:boiling dragonrime]
[STATE_ADJ:GAS:boiling dragonrime]
[DISPLAY_COLOR:3:0:1]
[MATERIAL_VALUE:1]
[SPEC_HEAT:8000]
[IGNITE_POINT:20000]
[MELTING_POINT:23]
[BOILING_POINT:1000]
[HEATDAM_POINT:NONE]
[COLDDAM_POINT:NONE]
[MAT_FIXED_TEMP:NONE]
[SOLID_DENSITY:1500]
[LIQUID_DENSITY:1500]
[MOLAR_MASS:20000]
[IMPACT_YIELD:50000]
[IMPACT_FRACTURE:50000]
[IMPACT_ELASTICITY:10000]
[COMPRESSIVE_YIELD:10000]
[COMPRESSIVE_FRACTURE:10000]
[COMPRESSIVE_ELASTICITY:100]
[TENSILE_YIELD:10000]
[TENSILE_FRACTURE:10000]
[TENSILE_ELASTICITY:100]
[TORSION_YIELD:10000]
[TORSION_FRACTURE:10000]
[TORSION_ELASTICITY:100]
[SHEAR_YIELD:10600]
[SHEAR_FRACTURE:10600]
[SHEAR_ELASTICITY:5000]
[BENDING_YIELD:10000]
[BENDING_FRACTURE:10000]
[BENDING_ELASTICITY:100]
[MAX_EDGE:100]
[ABSORPTION:100]
[LIQUID_MISC_CREATURE]
(It's no longer strictly Deon's, but the science behind it is Deon's.)
Ice weasel rime breath, tweaked for OP:
[USE_MATERIAL_TEMPLATE:Rime:DEON_COLDBREATH_TEMPLATE]
[STATE_NAME:ALL_SOLID:solid weaselrime]
[STATE_ADJ:ALL_SOLID:solid weaselrime]
[STATE_NAME:LIQUID:weaselrime]
[STATE_ADJ:LIQUID:weaselrime]
[STATE_NAME:GAS:boiling weaselrime]
[STATE_ADJ:GAS:boiling weaselrime]
[PREFIX:NONE]
[CAN_DO_INTERACTION:MATERIAL_EMISSION]
[CDI:ADV_NAME:Breathe rime]
[CDI:USAGE_HINT:ATTACK]
[CDI:BP_REQUIRED:BY_CATEGORY:MOUTH]
[CDI:MATERIAL:LOCAL_CREATURE_MAT:Rime:UNDIRECTED_VAPOR]
[CDI:TARGET:C:LINE_OF_SIGHT]
[CDI:TARGET_RANGE:C:15]
[CDI:MAX_TARGET_NUMBER:C:1]
[CDI:WAIT_PERIOD:1]
(Specifically, switched from TRAILING_VAPOR_FLOW to UNDIRECTED_VAPOR and reduced WAIT_PERIOD:50 to 1, both for more emission power.)