While there’s definitely a distance at which you could teleport a durian at which it would form a cute micro-comet, it would be practically invisible. Comets are huge things, 100s of meters to kilometers across. The only way you’d be able to appreciate the durian micro-comet would be if you were right next to it. Conveniently, you’d also be able to appreciate the “you” micro-comet you’d form.

In this context, “negative mass” is a mathematical convenience rather than an actual particle having negative mass.

Think of it more like “energy required to pull apart a matter-antimatter pair”. In the vacuum of space, the energy that created the pair gets returned when they annihilate. But when near a blackhole, it had to “burn” some of its energy to interrupt that process. Energy is mass, so the blackhole gets less massive.

Mind you this is a very basic explanation of it. It’s just another quantum whackyness of our universe.

Oh god I was afraid it was an actual Wikipedia article

https://fanlore.org/wiki/For_Guidance,_Please_See_the_Corporate_Interpersonal_Relationship_Policy