Yes, that would be an accurate statement Carm. A double action automatic pistol like the one Oscar used is designed so that it can have a round loaded in the chamber and be safely carried without the manual safety engaged. The heavy trigger pull makes it unlikely that an accidental firing of the gun will happen.
The first shot (if the hammer is down) will be heavy and subsequent shots will have a lighter trigger pull because the slide will automaticallythe hammer.
Most double action revolvers do not have a manual safety. They rely on the heavy trigger pull as the only "safety".
Thanks Ranch......so I am assuming OP had to have pulled the trigger hard to shoot the first shot and his claims of it going of mysteriously on its own is BS....or Oscar Speak.