back up coverage when alarm not armed?

["autonut843" <hmjunk31415@xxxxxxxxxxx>]

Alarm question - I'm just curious, does anybody do anything like this?

A few months ago some friends of mine had their house burglarized while
they were at work (no alarm, now they have one).  Basically the thieves
came in and tossed the place upside down looking for things.
Now, occasionally, someone forgets to arm the alarm when they leave.

Since some home burglaries involve tossing the house when the occupants
are away, does anybody recommend/discourage having some things like
pictures on wall, drawers in dresser, etc. wired in to zones programmed
as follows...
	Set up either on partition 2 (Ademco Vista 20 for example) that is
almost always armed
		Or
	Set up as a "24 hour audible alarm" (or 24 silent or 24 auxiliary)  (
types 7, 6, 8 respectively)
Obviously if the user always sets their alarm every time they go away,
this is a moot point.
But for the ones that occasionally or always forget.  Might this be a
good idea?
Have you ever seen it done?
Would you recommend it?
Would you discourage it?