Arrival is unfortunately imminent. That being said, I've been thinking about how to properly handle the poison once it is delivered.
I will not physically destroy the vials, it's simply too risky with current circumstances. Instead, disposal will involve a multi-layered "sarcophagus" ensuring the intact vials cannot contaminate the local environment while being absolutely unusable (for undesirables potentially sifting through garbage).
The poison will be placed in an Altoids tin, covered in toothpaste/dish soap/coffee grounds. Tin's going to be sealed via hot glue and copious amounts of tape. Wrapped in a plastic grocery sack, then double-bagged into another bag of e-waste (old broken speakers, a cheap keyboard). All going into the trash. Shipping label will be waterlogged in... I don't know, shitty pineapple Sprite, until the printing is illegible.