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...
Fortunately, there was a lie detector test that I passed, (and I'm a terrible liar) so the suspicion of me being an accomplice to the job is thrown out.
Fortunately I'd found some evidences before the party and injected some Nano Explosive Micro Parasites(NEMP) which me and Darkfire45 invent'em in our underground lab!
But we lost the Remote detonator so if someone finds it, it'll be explosion time for you! >