Made me think of alarms randomly going of in the middle of the night. Then had this thought, imagine triggering lights and siren gradually as one approaches. T

Made me think of alarms randomly going of in the middle of the night. Then had this thought, imagine triggering lights and siren gradually as one approaches. That way it can trigger much earlier and give a could-be intruder enough signal to stay away. I suspect gradual adrenaline in a feedback loop is more effective too. A sudden effect only needs to be considered once.