Although it is not the best place to carry, I, too, have a concealed carry purse.
I could shoot through the other side of it, if need be, as the opening is a blow-through velcro slot to get my hand into.
One could just jam it against the attacker, and haul on the trigger.
This works well in warm weather, as it is hard to conceal the fat little Glock under light clothes.
For winter, I have a leather shoulder rig.
This would prevent some creep from grabbing my purse and getting both it *and* my gun, but this could be hard to draw from in my car, or with my coat zipped up.
I carry a subcompact Glock G-29 10mm, so this is a pretty fat little gun...but loaded to .41 Mag specs with Norma brass, it should give enough penetration to even take out baddies with body armor.
The main thing is, I *always* carry, even if only on a quick trip to 7-11. I have for 25 years, so far, so good.....the bad guys seem to sense that this is not an easy hit, and I have never yet had to draw on anyone, which, after all, is the whole point of the exercise, not to clear the streets of criminals, but to make sure that in any confrontation with evil, *I* win.
No matter what you carry, or where you carry it........just always be sure to bring it along.