Well, I'd say that many the examples specified in 13-411 actually do involve threat to life...
13-407 specifically states that "PHYSICAL FORCE" is allowed.. not DEADLY force (these are two VERY different terms/meanings), EXCEPT when your life is in danger. I am not aware of a SINGLE case where civillian use of deadly force is legal/justified in the defense of PROPERTY. Life, and life ONLY.This of course ties only to USE of either type of force. 'Threat' of use of both appears to be A-OK.
"B. A person may use deadly physical force under subsection A only in the defense of himself or third persons as described in sections 13-405 and 13-406."
True, but there's more. ARS 13-411 allows for both physical and/or deadly force in a number of situations that don't necessarily involve an immediate threat to life.
"arson of an occupied structure" - that's a good way to kill people, that's for sure. Kidnapping, manslaughter, 2nd or 1st degree murder, statutory rape, sexual assault (keeping in mind rape is considered a solid defense for use of deadly force right from the get go), etc.
Some of the items in there certainly do seem a little gray though, specifically burglary. That looks to be a good statute for everyone who owns a firearm to read/get somewhat familiar with.
13-411. Justification; use of force in crime prevention; applicability
A. A person is justified in threatening or using both physical force and deadly physical force against another if and to the extent the person reasonably believes that physical force or deadly physical force is immediately necessary to prevent the other's commission of arson of an occupied structure under section 13-1704, burglary in the second or first degree under section 13-1507 or 13-1508, kidnapping under section 13-1304, manslaughter under section 13-1103, second or first degree murder under section 13-1104 or 13-1105, sexual conduct with a minor under section 13-1405, sexual assault under section 13-1406, child molestation under section 13-1410, armed robbery under section 13-1904 or aggravated assault under section 13-1204, subsection A, paragraphs 1 and 2.
B. There is no duty to retreat before threatening or using physical force or deadly physical force justified by subsection A of this section.
C. A person is presumed to be acting reasonably for the purposes of this section if the person is acting to prevent the commission of any of the offenses listed in subsection A of this section.
D. This section is not limited to the use or threatened use of physical or deadly physical force in a person's home, residence, place of business, land the person owns or leases, conveyance of any kind, or any other place in this state where a person has a right to be.