You had me laughing out loud on that one. Hey, you are going to tell us all what 'Bien sure' means, right? The only language (other than English) that I really speak is sign and I didn't use that one.
I only speak English fluently, but I've taken French classes--it's just been a while. So, I can explain what "bien sûre" (although if I remember correctly, it should be "bien sûr") means. It basically means "of course!"