mood: add get_pissed method (unused)

config.json.example

@@ -43,7 +43,8 @@
         "calm": "Fine!",
         "pissed": "Pissed off..."
       },
-      "calmed_message": "I'm calm now."
+      "calmed_message": "I'm calm now.",
+      "pissed_message": "I'm pissed off now..."
     },
     "notes": {
       "commands": ["note down", "notes"],

edmond/plugins/mood.py

@@ -15,6 +15,9 @@ class MoodPlugin(Plugin):
     This plugin exposes the runtime value `mood` (Mood) which can be
     used to act differently upon some actions according to the bot
     current mood.
+
+    There is only one question available: what's the bot mood? Multiple
+    questions in the `questions` list is equivalent to using aliases.
     """
 
     REQUIRED_CONFIGS = [
@@ -55,6 +58,12 @@ class MoodPlugin(Plugin):
         self.set_runtime_value("mood", Mood.CALM)
         self.bot.say(target, self.config["calmed_message"])
 
+    def get_pissed(self, target):
+        if self.mood == Mood.PISSED:
+            return
+        self.set_runtime_value("mood", Mood.PISSED)
+        self.bot.say(target, self.config["pissed_message"])
+
     def say_mood(self, target):
         answer = self.config["answer"].get(self.mood.value)
         if answer: