Taken from Fun and Games group in GR.

Person 1 posts a sentence, and the next person has to develop this sentence - but using Fortunately/Unfortunately at the beginning of every new sentence.
You can choose what to use - Fortunately/Unfortunately - as you wish 

Example
Person 1: I went to a bookstore today
Person 2: Fortunately, there were lots of new books in there!
Person 3: Unfortunately, all of them belonged in a genre I hate
Person 4: Unfortunately, although I was open for new reading opportunities - they were all pretty cheesy
Person 5: Fortunately, I've just finished a lengthy, high-level classic piece of literature, I needed something light and stupid to balance it
Person 6: Fortunately, I saw all of them were on sale! 60% off, wow!
Person 7: Fortunately, I quickly found a book I might love so I bought it right away
Person 8: Unfortunately, my teacher just saw me holding my brand new copy of "teenage love" and gave me this weird look. Awkward!
[...]

and so on. Fun, right?

I'll start:

Fortunately, you can now start a new topic.

Unfortunately, I don't like scary movies.

Unfortunately, that's not what I meant when I said "Scary Movie".

Unfortunately, I am still not watching it.

Unfortunately, the movie sucks.

Fortunately, I sleep through out the movie.

Fortunately, the movie was just a dream.

Unfortunately, the smell was coming from the neighbor's house.

Unfortunately, it was just the mailman.

Unfortunately, I am allergic to roses.