What if a character from a book/manga/comic you're reading or writing suddenly stands before you, real and in the flesh?

How will you react, where and when will it happen? How does it continue? Will the character return its world or remain?

It's up to you. ;-) No word limit and max three characters may appear. One entry per writer/reader.

P.S. you may add crossovers and if you read and write two different stories you may add them as well if you like. I'll be joining in too, just for fun. ;-)