I've learned to pay more attention to trust issues in other people. Sometimes it's because they've been wronged enough that they lose faith in others, but many times it's because they can't be trusted.
Madness string 87583
A black hole creates a hole in your perspective by trapping light that would have otherwise contributed to the image your eyes perceive. But I will note that any object between you and the source of light can cause a similar phenomenon. A solar eclipse is not a hole in the sun. Just because black holes achieve this through a unique means doesn't make them more deserving of being defined as holes, ontologically.