Typically, those who become close enough to know God don't do as I have mentioned but in everything there has to be at least one example.
Says who, may I ask? So many people talk volumes about adverse cases of people walking away from their faith and allegedly losing it and yet can't point out one example that fits their hypothetical. Why would any of us care about people we don't know nor will ever encounter in this life who allegedly walked away from their faith and lost it? How would anyone prove such a case? How does anyone prove loss of salvation in others or even themselves? What's the acid test that's not tied to some subjective measure made up in someone's inferior imaginations?
Please understand that I'm simply trying to help you to think more critically about those questions you're asking because, for a question to have merit, it needs something of substance behind its asking. Most point to answers that are found to be rooted more in feelings and emotions than for them to think on a higher plane, which is the basis for what scripture actually says in contrast to what one WANTS to believe. Reason and rationalization of hypotheticals that have no real substantial backing only muddy the waters and serve as distractions away from simply accepting what scripture teaches us.
MM