After maybe 5 minutes there where a number of trending topics along the lines of "Following 0" and "Zero Followers", with most of the people I know asking the same thing, "What the hell is going on?".
I didn't panic, I knew exactly what went wrong. Someone had dropped a bollock at Twitter command. It was funny whilst it lasted, with possibly thousands or people panicking they they had been hacked or said something offensive. I was tempted on sending a few tweets along the lines of "How could you say that. No wonder no-ones following you." as a joke, until I realised not everyone would appreciate that bit of humour.
Ah well, wasted opportunity.