Ok for example, I start by saying,"Unfortunately there was a giant evil pillow on the the loose; then the next person would say...Fortunately I had a knife with me and stabbed a hole in it"
Ok lets start. Unfortunately I was being chased by an elephant...
Unfortunately, you were somehow transported there, got hit on the head by one of those aforementioned falling cows, and went to a bad hospital to be treated by a drunk doctor, who thought you had an infected dislocated arm instead of a concussion, and amputated it.
