Same here, maybe even write a simulation or two to help pin down some of the side effects.

I did do a super simple simulation trying to explore if you could escape from beyond the event horizon where time dilation becomes so extreme that even very rare events become common. One of those extremely rare events could be when a galaxy collides with a second galaxy and the black holes at the center end up merging.

Turns out you could escape from falling into a particular black hole if you had a second black hole to counteract the gravity. Unfortunately even while you are at zero acceleration, you end up inside an even larger event horizon formed by the two black holes. Your choices would be to fall into the first black hole, fall into the second, or wait for them to collide. Even the waiting isn't a particularly good option. While being outside the event horizon of a very large black hole minimizes the spagetification problem, there's no such protection inside the event horizon.

In any case if interested in reading sci-fi based on black holes check out https://en.wikipedia.org/wiki/Black_holes_in_fiction

Not quite the same thing, but you might be interested in _The Forge of God_ by Greg Bear.

I second that. Great book. The sequel, anvil of stars is pretty good too, but its a different setting

David Brin's Earth deals with a black hole stuck orbiting inside the planet. Also predicted Google glass backlash.