What do you all think about the safety mechanism in general? My dad didn't believe in them when it came to defending one's self. Now I have 2 guns without a safety. Well, one has no safety at all, while the other has a handgrip and trigger safety, which, to me don't really seem like a safety. I'm referring to an AMT Backup 45 and a XDs 45. Do you agree or disagree with my dad's opinion?