This is something of a poll question. To what degree do players in your DW games understand (or want to understand) the potential results prior having their character trigger a World Move?

For example, before "opening a sewer hatch" (see the World Move example from DW book), would the GM tell the player that a gelatinous cube to the face is an option?

DW is a player-facing game in many repsects, but some of the fun of the classic experience is the "oh crap" moment. So, I'm curious how folks play this sort of thing in their DW games.