.. when you forgot your keys.
Most rented homes have two doors:
a) Main- Front door
b) Appartment door
And if you walk out of either and the door closes shut (Wind Oh Wind !) then: Yay !
So. For "b" the appartment door, you can install a fingerprint lock (got mine for 70€)
And a ? You cannot change the lock. As other people living in the same appartment complex rely in that lock.
But you can, rig your remote door buzzer:
And then the software (which you will freeze with Shizuku and Hail once done (as rooting is something my smartphones nolonger deserve):
Aand done. Whoopsie walked out / danced out the front door with no keys ? Haha. Klick to (w)in !