[nine_k]

The problem is that you can't really push a black hole. As long as there is a faint gravitational pull, it will keep coming closer to the mass, until it's able to touch and consume it.

The only hope that it would evaporate sooner.

[feanaro]

What about electrically charged black holes?

[onlyrealcuzzo]

Isn't the lifespan of microscopic black holes also... Microscopic?

[saagarjha]

Yes, and then they go out in a flash.