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, the family hire a super genius that shuts down the force field and disassembles the generator and then uses a bulldozer and wrecking ball to destroy the house.
Fortunately, when that happens we use the time machine to go back in time and get the repairman back, then he fixes the generator and we send him to the time he was killed. So still nobody knows about this place.
Unfortunately, that makes no sense since the time machine is in the same place with the house, where nobody knows about it. Not even you or me know it's location.
Fortunately, I move everything again. I move everything inside an active volcano. But, of course, who would be that stupid, well the force field is stil active.