You hear

There are several messages starting with You hear:

The following messages are associated with Monsters:

 * You hear a crunching sound
 * there's a metallivore on the level and its consuming a metallic object
 * You hear crashing rock
 * there's a dwarf or some monster somewhere on the level that is creating tunnels through walls
 * You hear some noises or You hear some noises in the distance
 * Your pet is fighting some monster out of your sight
 * You hear rumbling in the distance
 * Some monster set off a boulder trap
 * You hear a slurping sound
 * There's a gelatinous cube somewhere on a level
 * You hear a loud click!
 * You hear a door open
 * You hear distant howling
 * You hear a deafening roar!
 * You hear a jackal howling at the moon
 * There's a werejackal somewhere on the level
 * You hear a monster behind the boulder.. perhaps that is why you cannot move it
 * You hear a chugging sound.
 * unknown monster drinking a potion
 * You hear a distant explosion.
 * means that a monster has opened a trapped door or stepped on a landmine
 * You hear a distant squeaking sound
 * A monster set off a squeaky board trap

The following messages are associated with Zoos:

 * You hear a sound reminiscent of a seal barking
 * You hear a sound reminiscent of an elephant stepping on a peanut
 * You hear Doctor Doolittle! (hallucinating)

The following messages are associated with sinks:

 * You hear a slow drip.
 * You hear a gurgling noise.
 * You hear dishes being washed! (hallucinating)

The following messages are associated with fountains:

 * You hear water falling on coins.
 * You hear the splashing of a naiad.
 * You hear a soda fountain! (hallucinating)

The following messages are associated with vaults:

 * You hear the footsteps of a guard on patrol.
 * You hear someone counting money.
 * You hear someone searching. (Vault raided and empty)

Scroll of scare monster

 * You hear maniacal laughter close by.
 * You hear maniacal laughter in the distance.
 * You hear sad wailing close by.
 * You hear sad wailing in the distance.

The following messages are associated with Shopkeepers:

 * You hear someone cursing shoplifters.
 * You hear the chime of a cash register.
 * You hear Neiman and Marcus arguing! (hallucinating)

Stethoscope

 * You barely hear faint splashing
 * You applied the stethoscope up or down while underwater.


 * You hear the crackling of hellfire
 * You applied the stethoscope to the floor of the castle, beneath which lies the Valley of the Dead.


 * You hear your heart beat
 * The stethoscope is cursed.


 * You hear a faint typing noise
 * You applied the stethoscope to the edge of the map.


 * You hear a hollow sound. This must be a secret door/passage!
 * You applied the stethoscope to a wall concealing a secret door/passage.


 * You hear a voice say, "It's dead, Jim."
 * You applied the stethoscope down, to a corpse, while hallucinating.

The following messages are associated with Pets:

 * You hear the rumble of distant thunder...
 * You killed your pet


 * You hear the studio audience applaud!
 * You killed your pet while hallucinating

The following messages need categorization:

 * You hear a soft crackling
 * You hear a crackling sound
 * You hear the howling of the CwnAnnwn... - player is about to die...