Unfortunately; Fortunately

Unfortunately the whole Universe blew up and all that was left was a word: d*mn

Fortunately the word d*mn became known as 'sam'.

Unfortunately there was no one left for the word to be known as 'sam'

Fortunately the earth was invaded by aliens who won as there were no one to stop them and they took over the world and prospered.

Unforunately, a few human still lived waiting to kill the aliens.

Fortunately, the aliens had a highly advanced technology that they used to convert the humans into aliens and rule the world together.

Unfortunately, the human were only pretending to be aliens.

Fortunately, the humans tooted and it turned them into real aliens because there natural gas had an unnatural gas that made them aliens! Run Away!

Unfortunately the aliens turned on the humans and destroyed them.

Fortunately the aliens realised that they didn't exist seeing as everything was destroyed previously

Unfortunately, the narrative shifted randomly into the first person and I - alien leader Gtfhjbhuobnj-comma-ghndedbn, known to my friends as Jeff - was playing around with a deus-ex-mechina machine while the universe was blowing up and so I was not killed, only horribly mutilated and scarred

Fortunately you ate your mom because you were so scared!

Unfortunately his mom was the earth, which meant he ate the earth.

Fortunately she was to big for him to eat so he puked her back up and his head exploded.

Unfortunately the narration changed to his point of view where he claimed tat he was the ruler of the world.