Question: Who has risked their microphone investment and have it pay off?

* Submerged in boiling water
* Frozen in ice
* Dipped in liquids other than water,
ie. syrup, molasses, oil, etc
* Floated close to hazardous objects,
ie. garbage disposal blades,
propellors, etc
* Something else even crazier than the
above?

Answer: 
While I take no credit for doing it, an old friend of mine submerged one in his bathtub and fired off a bottle rocket. Him, the mic, and the bathtub/apartment survived.
I tried putting the hydrophone inside a balloon filled with water to get interesting impacts, jiggles, etc., but unfortunately I couldn't figure out a way to avoid cable vibration/noise emanating from where it touched the tied neck of the balloon. Made some interesting sound though.