I think everyone has thought about it at some point but with differing levels of seriousness, whether it's just curiosity or you genuinely can't see a way out. My life makes me frustrated and sometimes, though I have never considered suicide seriously, I can't imagine what it must take for someone to go through with it uncertain of what happens afterward, and go against your instinct to survive. Mental illness runs in my familly, I know people who have told me they've been suicidal and suffer from schizophrenia etc... It's scary