What I tell my Alexa to do when there is a intruder:
1. Turn off all lights and play ominous music
2. Say "So you have chosen death" and stop music
3.Lock all doors in the house
4. Play "Doom OST 22: The Only Thing They Fear Is You"
5. Release the Roombas
6. Release the hounds
7. Call police after the intruder is very traumatized