Wand of wonder caused a game crash
I don't know exactly what conditions caused this but I got a critical internal error very soon after starting a new game.
I rolled a merchant who specialized on wands and started with a wand of wonder (2 charges).
I instantly entered the first wilderness square and started zapping the wand. First zap gave some light and nothing weird happened. Second zap was summon monsters (got more prompt telling I try to summon some monsters) but the game segfaulted before the monsters appeared (crashed with critical internal error 11).
This happened with 64 bit ubuntu ascii version.