• FALLING OBJECT: A chandelier or kickable bricks/toilets, fairly intuitive so not too much to explain here. Note that a falling object makes a loud noise when it lands so anyone nearby will generally be drawn to the body and find it, but it is an accident so it's not going to hurt score (but it could change NPC behavior, so watch for that).
  
• FALL: This one's a little tricky because it applies to both pushing/kicking people over railings and off ledges and to pushing/dumping people into water (which you'd think is Drowning, but it is not). It's also tricky because some falls are non-lethal; check whether the Push/Kick/Dump prompt says "Eliminate" to know this. There isn't a set height where this happens, as for example first floor windows in Dartmoor are lethal falls even though they don't look like they should be. Note that pushing or dumping someone into water automatically renders the body hidden even if the corpse is floating there rather obviously; the game will eventually run a cleanup script where it drags the corpse down and eventually deletes it from the environment to save on performance, which is why killing the entire map can cause chugging but dumping everyone into the Seine on Paris can maintain stability.
  
• EXPLOSION: This applies exclusively to propane, gas canisters and other environmental explodables, and cars/bikes; actual explosives are considered an Explosive Device kill and are not accidents, but as mentioned, other explosives can trigger Explosion accidents. Gas, if leaking, can also be set off by any sort of spark, including key hackers, tasers, and the Remote EMP (the EMP itself won't trigger anything, but the sparks when the device shorts out afterward will). Bullets cannot set off gas but if shot at a leaking gas object will detonate it. Needless to say, explosions of any sort will cause a panic.
  
• ELECTROCUTION: This one's quite obvious because it has a unique death animation and applies to plug/water combos, tasers in water, and anyone holding a taser when it's set off (this will only be guards). Outside of tasers there's no way to set this off without a specific environmental setup. Note that electrified puddles will generally only shock once, after which they will lose their charge. They can be recharged if the electrical source is connected to a toggled plug or generator; the first shock will "short out" the electrical source and turn it off, but it can be re-activated by turning it back on. Without that, you can usually only electrify something once.
  
• FIRE: This one is also obvious due to its unique death animation and the only way to trigger it is environmental stuff, usually red cans that leak an oil puddle which can be subsequently shot or triggered by a spark. Because the NPC screams, it tends to attract a ton of attention that other accidents may not always attract.
  
• DROWNING: 99.9% of the time this means drowning someone in a toilet and nothing else. The NPC does not need to be sick from an emetic to be drowned, they just need to be close enough to the toilet and facing it such that 47 can walk up behind them and use the prompt (so a coin on the toilet seat can work as a lure). There are a tiny handful of situations where shallow environmental water counts as Drowning, notably the puddles in Colorado and the Hokkaido spa, but this isn't universal; I believe Haven's shallow water counts as a Fall but I'm not sure (and apparently the Dartmoor water crossings don't kill at all). To kill someone you either need to knock them down in the water or drag their unconscious body into or through the water such that they're partially submerged. Note that I said knock down, not knock out; throwing a muffin at someone or legshotting them so that they fall over in the water will kill them without technically counting as a KO, so you can use this method on people even if No Pacifications is a requirement.

nexus6 fucked around with this message at 21:04 on Feb 7, 2021