I was out doing a nightscape a few nights back. Suddenly the environment around me starting lighting up fairly brightly and I was thinking whats that a car or something (of course it couldn't be as I was in a remote paddock) and I realised it was a fireball and just caught a fraction of it as I turned around (it was behind me).
It must have been really bright and a shame I was facing the other way. One night I will catch one of these.