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, they had already placed scouts on the ground and they saw that the cannons were unplugged and unloaded. They reported back to HQ and the invasion re-ensued.