home alarm systems. No, I mean when I have the code. (B&E just ain't my type of work). My sister and I were delivering a treadmill to another sister's house one day and even though we punched in the code the alarm kept going. Turned out sister had given us the code but not the extra key you press (# or * or something). Had to stand right in front of the control box with the electronic siren screaming (and it was PAINFULLY loud) until figured out the extra keystroke. Now I have a completely silly fear of the darn things.