This is a door lock that isn't quite glitch proof but works
what happens...
1. is there are two currents which don't run in sync and they have to stay the same for at least a second before they open the door.

2. First there are two circuit which are repeating and are inverted

3. then an AND gate which waits until they sync then passes a signal to the RS NOR latch

3. the RS NOR latch just stabilises the sync signal and keeps the door open

Basically It is a random amount of time until the door opens you can click the repeaters to a longer pause for a quicker opening