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He started out with telling them how incompetent they were. When the woman tried to apologize and explain he started saying things like he would come over the counter and show her what sorry was. This was after he had allready threw the clipboard at her head.
When he came in the second time it was basicallly more of the same. He went off about how he was the wrong one to be giving the run around to and that he was done being "Mr. Nice Guy", thats when he left the second time.
On his third trip in it was Jekyll and Hyde. He was trying to apologize but was getting very agitated when the clerk kept refusing to come out and speak to him. You could physically see him trying to calm himself or control himself.
Pre-read note: I am not a lawyer. Do not take my advice as legal council. Consult a lawyer.
The factor to consider here is "What kind of crime was this man committing, or planning on committing?"
Since he winged a clipboard at her head, I would think it would classify as a battery. This, however, could be different depending on your local and state laws. The reason for this is because the action was unexpected. The difference between an "assault" and a "battery" is that the assault is expected and feared, whereas the battery was unexpected. At least this is my understanding from reading this.
http://en.wikipedia.org/wiki/Assault
Please, feel free to correct me if I'm reading any of that wrong. It is kind of hard to sort.
Anyway, let's put this situation into my perspective. In my state, Washington, you can use deadly force to stop a felony where someone could be hurt. Also, assault is a Class A felony.
"RCW 9A.36.011
Assault in the first degree.
(1) A person is guilty of assault in the first degree if he or she, with intent to inflict great bodily harm:
(a) Assaults another with a firearm or any deadly weapon or by any force or means likely to produce great bodily harm or death; or
(b) Administers, exposes, or transmits to or causes to be taken by another, poison, the human immunodeficiency virus as defined in chapter 70.24 RCW, or any other destructive or noxious substance; or
(c) Assaults another and inflicts great bodily harm.
(2) Assault in the first degree is a class A felony."
http://apps.leg.wa.gov/RCW/default.aspx?cite=9A.36.011
RCW 9A.16.040 covers peace/police officers and "persons aiding:"
"RCW 9A.16.040
Justifiable homicide or use of deadly force by public officer, peace officer, person aiding.
(1) Homicide or the use of deadly force is justifiable in the following cases:
[...]
(i) To arrest or apprehend a person who the officer reasonably believes has committed, has attempted to commit, is committing, or is attempting to commit a felony;"
http://apps.leg.wa.gov/Rcw/default.aspx?cite=9A.16.040
RCW 9A.16.040 covers civilians specifically:
"RCW 9A.16.050
Homicide — By other person — When justifiable.
Homicide is also justifiable when committed either:
(1) In the lawful defense of the slayer, or his or her husband, wife, parent, child, brother, or sister, or of any other person in his presence or company, when there is reasonable ground to apprehend a design on the part of the person slain to commit a felony or to do some great personal injury to the slayer or to any such person, and there is imminent danger of such design being accomplished; or
(2) In the actual resistance of an attempt to commit a felony upon the slayer, in his presence, or upon or in a dwelling, or other place of abode, in which he is."
http://apps.leg.wa.gov/Rcw/default.aspx?cite=9A.16.050
The laws here in my state grant me the legal protection to defend anyone in my presence from a felony, specifically one with the intent to harm. I would have done the exact same things you did, OP.
Except I don't carry a 1911 pistol.