There is one argument that kills the entire idea. Cosmic rays of far higher energy hits the eart contionously and have been doing so for earths entire existance, we have still not been consumed by a black holeSo Id say we have nothing to worry about.
This is a nice article about the highest energy cosmic ray we have so far picked up
http://www.fourmilab.ch/documents/OhMyGodParticle/
Its just unbelivably silly how much of a punch that little ****er packed.