I currently EDC a Beretta M9 and you certainly don't want to carry with one in chamber, decocked and unlocked. Condition 2 is never recommended.
If the hammer is knocked or bumped into, can possibly lead to ND. This has been claimed, but I have yet to test at the range, but logic does indicate it can occur.
I have yet to read a single report or article of a ND due to carrying in Condition 0.
This is from the Beretta site:
Automatic Firing Pin Block. The front part of the firing pin is blocked from any forward movement until the trigger is pulled completely back. Even if the pistols falls and strikes the ground, muzzle-down, the firing pin will not strike the primer.
Unless I am reading that wrong, I could carry with one in the chamber, decocked and unlocked, correct?
For me the reason I dislike Safeties on a Pistol is due to the fact it is just another point to Fail on a very complicated Machine...
Ohhhh...
You mean the Decocker that acts like a Manual Safety that everybody calls the Safety...
I have Personally carried one for Hundreds of Hours if not Thousands of Hours in Condition 2 without ever having this happen.
It is a dual function "switch". With the safety on it disengages the firing pin. Pull that thing all you want and it aint gonna go bang.