Grumble command

Grumble
Unknown
GRUMBLE You see: You grumble. Others see: <Person> grumbles. GRUMBLE <self> You see: You grumble to yourself. Others see: <Person> grumbles to <himself/herself>. GRUMBLE <person> You see: You grumble at <Person>. Target sees: <Person> grumbles at you. Others see: <Person1> grumbles at <Person2>. GRUMBLE (hidden) You see: You grumble. Others see: You hear someone grumble.