" Poison is for weaklings, they say. The English poet Phineas Fletcher (1582-1650) may have been the first to coin the term “coward's weapon,” but the opinion has not dissipated in the centuries since; even a character in George R. R. Martin’s Game of Thrones recently sniped that poison was a gutless way to kill. Poison is sneaky, it’s slow, and you can poison someone without spilling a drop of their blood or awkwardly making eye contact with them midimpalement. As such, it doesn’t get a lot of cred for being scary. Poisoners simply don’t terrify people the way, say, disembowlers do.

But that’s unfair, because poisoning requires advance planning and the stomach for a drawn-out death scene. You need to look into your victim’s trusting eyes day after day as you slowly snuff out their life. You have to play the role of nurse or parent or lover while you sustain your murderous intent at a pitch that would be unbearable for many of those who’ve shot a gun or swung a sword. You’ve got to mop up your victim’s vomit and act sympathetic when they beg for water. While they scream that their insides are on fire, you must steel yourself against the dreadful sight of encroaching death and give them another sip of the fatal drink. A coward’s weapon? Not so much. Poison is the weapon of the emotionless, the sociopathic, and the truly cruel. "

― Tori Telfer , Lady Killers: Deadly Women Throughout History