[Mathews]

I have carried my 1911 for well over a decade. Same gun. Always carried cocked with thumb safety on... until this past Sunday. Unholstered and got in the car, placed the weapon on the passenger seat and went home. Grabbed the gun to go in the house and noticed the damned safety was off. Don’t know how it happend and I’m not sure WHEN it happend. I consider myself very lucky and I have begun carrying with the hammer down now.

[Resolute Conservative]

I avoid that problem with my Sig P229 and Glock 32. The 1911 is in the safe, er ... I mean lake.

[Lee'sGhost]

Man! That’ll scare the shi’ite out of you.

S&W M&Pc racked. No safety.

[Red in Blue PA]

I hope you mean Condition 3 and NOT Condition 2!

[MasterGunner01]

John Browning equipped the M1911 with four safeties:
1) Thumb safety that locks the hammer in the cocked position on a loaded chamber (Condition ONE).
2) Grip safety that must be pushed in (gripped by firing hand) to release the hammer when the thumb safety is OFF and hammer cocked.
3) Half cock safety that prevents an accidental discharge when the hammer is cocked or lowered. This is NOT a carry safety.
4) Disconnector safety that prevents an out of battery firing if the slide and barrel are not locked-up.

If the safety went from locked to off, I would check for a set slide stop/thumb safety spring. Also, check thumb safety and detent for wear. Replace spring, detent, or thumb safety as required. Under usual handling, there should be effort required to move the safety of a cocked M1911 from ON to OFF (or vice versa). It will not happen by just brushing against it; it has to be a conscious act.