Without question next to your statement you have all your guns set up to kill people which even you finally admitted wasn't the smatest thing to say the above two statements rank two and three as the least thought out posts you have ever made.
As to your deep concern about using the word "Accident" or "Accidental", a concern mentioned by more than just you, you might want to get hold of a dictionary sometime and look up the different meanings of the word. English is funny that way as words can have different meanings. The definitions are listed below:
n.
A. An unexpected and undesirable event, especially one resulting in damage or harm: car accidents on icy roads.
B. An unforeseen incident: A series of happy accidents led to his promotion.
C. An instance of involuntary urination or defecation in one's clothing.
D. Lack of intention; chance: ran into an old friend by accident.
E. Logic. A circumstance or attribute that is not essential to the nature of something.
[Middle English, chance event, from Old French, from Latin accidēns, accident-, present participle of accidere, to happen : ad-, ad- + cadere, to fall.]
I think you will find one of the definitions meets the criteria and the word can be used to describe an unintended discharge of a firearm.
As to the Glock vs M&P, both are relatively inexpensive to manufacture and thus can be sold for little in bulk and still provide a margin of profit to the manufacturer. In the case of these two pistols both are sold to Law Enforcement at great discount to MSRP to the benefit of the taxpayers and the "bean" counters. Both fullfill the need to arm police officers with a firerarm which will go bang on the rare occassion when the need arises. With the average gunfight distance being somewhere in the neighbourhood of 3' with 3 or less shots fired the guns are adequate for the Law Enforcement crowd. For other applications one might want to look further afield.
Take Care
Bob
