I used to worry about gravity. I could imagine it breaking or malfunctioning for just a moment like the lights flickering off and back on quickly. Just long enough to create chaos (or a rapture...jk).
I decided to stop worrying about gravity. Now I worry about meteors and comet garbage and black holes.
I grew up being told that the black holes are like giant vacum cleaners, get too close and it is all over.
Maybe the black holes are the vultures of outer space. They clean up the place.