even if you are atheist...whats the harm in just thinking that there could be a god? and seriously, you don't have to be assholes and always try to correct Christians? seriously, no one really knows.
it goes the other way round too. christians dont need to be assholes and convert atheists. and the harm in believeing in god "just in case" is that we dont believe. its called belief, not choice for a reason.
the way i look at it? you ever seen a atheist trying to convince a christian to convert and not believe in god. hell, there are classes in some schools that do that. O_o