I dun think putting a camera in an Oven or Microwave is safe. Even if u took out the battery, there is an area in the camera body that has a very high voltage (I have seen it in 2 vids in youtube) even when u took out ur battery.
Like in this vid.
http://www.youtube.com/watch?v=pwZ_RleZ9Bw
If explode how? somemore cannot see his actual video of him microwaving it. Very suspicious. Some Youtube video cannot believe one. Like the Canon1000D he wash with water. turns out the camera is already dead. Some are just lemmings, they want others to follow their stupidity.