Be comforted in the fact that we really have no idea at all when it'll happen.
This was all done in camera, only minor contrast was added in
photoshop. Simple really, focused in on the bulb, and them zoomed out
right after I hit the shutter. :D
If you camera doesn't have a manual zoom ring, you can always try moving the camera backwards/forwards; it gives just about the same effect.
I lined the lamp with aluminum foil to give the lava/fire effect.
Exposure: 0.1 sec (1/10)
Focal Length: 18 mm