Characters conversations

If two of your characters from different stories could have a conversation...what would they say...
E.G.
Ruby from Secrets of Bridgehouse
Caitlin from Three's a crowd
Caitlin-What's wrong?
Ruby-It's my sister...she's mad at me...
C-But I'm sure you'll figure it out!
R-Yeah right
C-You look smart...
R-Yeah...but she's mad at me...
C-What did you do?
R-I kept a terrible secret from her
C-I'm sure she'll forgive you

That was just something i did quickly, its not that good, because neither of the stories are finished...so the characters are in the same state of mind that they are in the stories at the mo...

I'm not sure this would really help me with anything... my stories are so different, the characters wouldn't be able to interact. I have that problem... My characters don't live outside their stories, though I'm trying hard to change that!

My characters do this all the time in my head without me doing anything. They run around and cause trouble when I'm trying to work, arguing with each other. The stronger characters tend to bully the weaker younger ones too. But thier personalitys do change for the better doing this. I couldn't tell you what they say though. They'd kill me O_O