The appearance on my screen of a hideously unnatural-looking alien planet lit by a ghastly greenish sun confused me for a moment, until I realised I was looking stupidly at my own face. Not for the first I had accidentally activated the FFC. I once did this AND took a photo when inspecting a demo S5 in a store, and spent long minutes poking at the unfamiliar buttons before I succeeded in deleting it. The people of my home town owe me for that.
Forum members who look like krijmo need have no such concerns.
On the subject of FFCs, I'm surprised that the conspiracy-theory-believers don't seem to have picked up on this one. I imagine it might be technically possible for governments and security agencies to observe their citizens through FFC's and webcams, the same as through the television sets in the novel '1984'. Whether it's actually done I have no idea, and not much interest, but some people would very readily believe it to be true so why aren't they insisting that we all wake up and realise we're being watched?