Nope, Once saved always saved is contrary to the Gospel- it makes the people who believe it believe they are protected from sin, but, we all have free will. So the "saved" is free to sin just as much as the next guy.
This is an age-old debate- I highly doubt that you will convince anyone to "switch camps". I am a Christian, solid in my beliefs. However I cannot tell you that tomorrow I may not sin gravely, and fall out of a state of grace.
It might happen. Probably not, because I have a 12 hour shift, lol, but you never know.
In my opinion, OSAS is just another "feel good" theology that lets people think they are better than others.
Being Catholic, I can't tell you how many people have said "oooh, you're Catholic- are you saved?"
To which my reply is, and always will be this:
"I have been saved, I am being saved, and, God willing, will be saved when I depart this life".
hey, If it makes you feel better to believe that you can't fall from Christ's friendship, good on ya. But we all know that even His disciples betrayed Him. Something tells me that todays churches probably can't be more convincing than Jesus Himself...
But think twice before declaring to the world that "OSAS" is true- you just might lead someone into a false sense of security.
In my opinion, it is clearly smarter to err on the side of caution. Salvation and a relationship with God is something that has to be cultivated and nurtured: It's not just a "poof" one time deal.
Food for thought-
Cheers, V