I can't imagine a scenario where a G!ock in a proper holster that completely covers the trigger guard, would fire by being bumped or jostled inside of a pocket.
Pocket carry has it's down sides but as far as safety goes, I consider it one of the safest forms of carry (if done following the basic safety rules, ie; holstered, no other items in that pocket).I
Drawing the handgun from the pocket is probably the least safe thing about pocket carry, but if you have to draw your gun in self defense you've got bigger issues going on. Other than that, the gun is holstered when you put it in the pocket, it's holstered while in the pocket and it's holstered when pulling it out of the pocket.