I have a few curiosities after my last game:
  1. I found out Petrify doesn't summon guards or Curse you when you use it to kill a shopkeeper, although it does take a while to stick. Are there any other good "free" ways to kill shopkeepers?
  2. Earthquake doesn't work on "special" levels, OK, I get that. In the process of spamming it as I walked my Wizard up from D:50, there were a couple of what appeared to be totally normal levels where it failed. My best guesses are "where the wall of fire used to be" and "where the Eternal Guardian used to be," but I'm really not sure. Does anyone else have any better ideas? I burned a couple of Blessed Scrolls of Magic Map, so I know there was nothing hidden.
  3. I have frequently seen wands duplicate themselves when manipulated, usually in the process of failed last-charge-wrenching. Does anyone know what causes this, or how to reproduce it reliably?