I have a physics class with a particle physicist. Today in class we derived some Special Relativity equations, including Lorentz force mass inflation. I asked, since it was my assumption, that if particle accelerators can create black holes by accelerating particles to a critical density that would equal that of an event horizon.
He responded by defining what a black hole is and acting like he'd never heard of the idea of particle accelerator black holes. I think I was better off at Chicago.