Concur! Don't f**k with the Glock.That's the disadvantage of a no safety firearm. If something, whether it's something in the holster, a shirt that folded over or whatever somehow manipulates the trigger the same way your finger can then the gun will go off and you will shoot yourself, that's the nature of the beast. It's like appendix carry, for you to do it right you literally have to understand that if you get it wrong you will shoot yourself and where you're likely to shoot yourself has a high probability of being fatal over other carry methods.
What I'm saying is, if you can't set yourself up to deal with that reality and train around it as best you can you're better off buying a true hammer fired gun where you can do the double safety thumbing the hammer thing. Jimmy rigging your Glock so that it functions like one seems like a bad idea.
"This is one race of people for whom psychoanalysis is of no use whatsoever."
Sigmund Freud refers to the Irish.