Bark

"Dead dog can't bark"

Bark its an action that Fidel can perform, it can be executed with Control Key (or Shift on Mac?), and it has several uses:

"Barkable" enemies:
 * Tortoise (will turn to face you)
 * Dragon Claw (will flip orientation)
 * Fanatic (will awake)
 * Baby Spider (will be killed)

"Barkable" objects:
 * Chest (will open to reveal if mimic or treasure)
 * Candles are put out