I visited my mom after they moved into their new house. She unlocked the back door and the alarm beeped a couple of times. She went over and typed in the PIN. I saw the piece of paper taped to the wall with numbers on it.
I said “Mom! This makes your alarm system useless!”
She answered, “I’m not that dumb son. That’s the panic code. If someone tries to use it for the PIN, they have a nasty surprise coming.”
Sheesh! No wonder I never got away with anything as a kid. She was a step ahead of me the whole time.
Quite clever. Kudos to mom!