diff --git a/bot/globals.py b/bot/globals.py
index 306a2d8..86d6167 100644
--- a/bot/globals.py
+++ b/bot/globals.py
@@ -69,35 +69,15 @@ EVIL_MODE = False
 EVIL_DM_MOOD = "evil_neutral"
 EVIL_DM_MOOD_DESCRIPTION = "Evil Miku is calculating and cold."
 EVIL_AVAILABLE_MOODS = ["aggressive", "cunning", "sarcastic", "evil_neutral"]
-EVIL_MOOD_EMOJIS = {
-    "aggressive": "👿",
-    "cunning": "🐍",
-    "sarcastic": "😈",
-    "evil_neutral": ""
-}
+# EVIL_MOOD_EMOJIS removed — canonical source is utils/moods.py
 
 # Bipolar Mode System (both Mikus can argue via webhooks)
 BIPOLAR_MODE = False
 BIPOLAR_WEBHOOKS = {}  # guild_id -> {"miku_webhook_url": str, "evil_webhook_url": str}
 BIPOLAR_ARGUMENT_IN_PROGRESS = {}  # channel_id -> {"active": bool, "exchange_count": int, "current_speaker": str}
 
-# Regular Miku mood emojis (used in bipolar mode for webhook display names)
-MOOD_EMOJIS = {
-    "bubbly": "✨",
-    "sleepy": "💤",
-    "curious": "🔍",
-    "shy": "🥺",
-    "serious": "😐",
-    "excited": "🎉",
-    "silly": "🤪",
-    "melancholy": "💙",
-    "flirty": "💕",
-    "romantic": "💖",
-    "irritated": "😤",
-    "angry": "😠",
-    "neutral": "",
-    "asleep": "😴"
-}
+# MOOD_EMOJIS removed — canonical source is utils/moods.py
+# bipolar_mode.py now imports from there directly
 
 BOT_USER = None
 
diff --git a/bot/utils/autonomous.py b/bot/utils/autonomous.py
index 8ec5507..c725770 100644
--- a/bot/utils/autonomous.py
+++ b/bot/utils/autonomous.py
@@ -184,6 +184,9 @@ async def _check_and_react(guild_id: int, message):
     Check if Miku should react to a new message with an emoji.
     Called for each new message in real-time.
     """
+    if _autonomous_paused:
+        return
+
     # Calculate message age
     from datetime import datetime, timezone
     message_age = (datetime.now(timezone.utc) - message.created_at).total_seconds()
@@ -211,6 +214,9 @@ async def _check_and_act(guild_id: int):
     Uses per-guild lock to prevent race conditions from near-simultaneous messages.
     """
     async with _get_action_lock(guild_id):
+        if _autonomous_paused:
+            return
+
         # Rate limiting check
         now = time.time()
         if guild_id in _last_action_execution:
diff --git a/bot/utils/autonomous_v1_legacy.py b/bot/utils/autonomous_v1_legacy.py
index 81f6021..26d2c27 100644
--- a/bot/utils/autonomous_v1_legacy.py
+++ b/bot/utils/autonomous_v1_legacy.py
@@ -304,7 +304,7 @@ async def miku_engage_random_user_for_server(guild_id: int, user_id: str = None,
     
     # Skip cooldown check if this is a manual trigger from web UI
     if not manual_trigger and now - last_time < 43200:  # 12 hours in seconds
-        logger.info(f"Recently engaged {target.display_name} in server {guild_id}, switching to general message.")
+        logger.warning(f"[engage_user→general] Recently engaged {target.display_name} in server {guild_id}, falling back to general message (cooldown).")
         await miku_say_something_general_for_server(guild_id)
         return
     
@@ -456,10 +456,7 @@ async def miku_detect_and_join_conversation_for_server(guild_id: int, force: boo
             # Not enough activity
             logger.debug(f"[Join Conv] Not enough activity: {len(recent_msgs)} messages, {len(user_ids)} users (need 5+ messages, 2+ users)")
             return
-
-        if random.random() > 0.5:
-            logger.debug(f"[Join Conv] Random chance failed (50% chance)")
-            return  # 50% chance to engage
+        # Note: V1 had a redundant 50% coin flip here, removed since V2 engine already decided to act
     else:
         logger.debug(f"[Join Conv] Force mode - bypassing activity checks")
         if len(recent_msgs) < 1:
diff --git a/bot/utils/bipolar_mode.py b/bot/utils/bipolar_mode.py
index d8c51a9..a498424 100644
--- a/bot/utils/bipolar_mode.py
+++ b/bot/utils/bipolar_mode.py
@@ -404,8 +404,9 @@ async def update_webhook_avatars(client):
 
 def get_miku_display_name() -> str:
     """Get Regular Miku's display name with mood and emoji"""
+    from utils.moods import MOOD_EMOJIS
     mood = globals.DM_MOOD
-    emoji = globals.MOOD_EMOJIS.get(mood, "")
+    emoji = MOOD_EMOJIS.get(mood, "")
     if emoji:
         return f"Hatsune Miku {emoji}"
     return "Hatsune Miku"
@@ -413,8 +414,9 @@ def get_miku_display_name() -> str:
 
 def get_evil_miku_display_name() -> str:
     """Get Evil Miku's display name with mood and emoji"""
+    from utils.moods import EVIL_MOOD_EMOJIS
     mood = globals.EVIL_DM_MOOD
-    emoji = globals.EVIL_MOOD_EMOJIS.get(mood, "")
+    emoji = EVIL_MOOD_EMOJIS.get(mood, "")
     if emoji:
         return f"Evil Miku {emoji}"
     return "Evil Miku"
diff --git a/bot/utils/evil_mode.py b/bot/utils/evil_mode.py
index 49c31f9..50aea7b 100644
--- a/bot/utils/evil_mode.py
+++ b/bot/utils/evil_mode.py
@@ -191,7 +191,8 @@ def load_evil_mood_description(mood_name: str) -> str:
 
 def get_evil_mood_emoji(mood_name: str) -> str:
     """Get emoji for evil mood"""
-    return globals.EVIL_MOOD_EMOJIS.get(mood_name, "")
+    from utils.moods import EVIL_MOOD_EMOJIS
+    return EVIL_MOOD_EMOJIS.get(mood_name, "")
 
 
 def is_valid_evil_mood(mood_name: str) -> bool:
diff --git a/bot/utils/moods.py b/bot/utils/moods.py
index 4725a2a..2fae966 100644
--- a/bot/utils/moods.py
+++ b/bot/utils/moods.py
@@ -162,9 +162,11 @@ async def rotate_dm_mood():
             old_mood = globals.DM_MOOD
             new_mood = old_mood
             attempts = 0
+            # Filter out 'asleep' — DMs have no sleepy→asleep transition guard
+            dm_eligible = [m for m in globals.AVAILABLE_MOODS if m != "asleep"]
             
             while new_mood == old_mood and attempts < 5:
-                new_mood = random.choice(globals.AVAILABLE_MOODS)
+                new_mood = random.choice(dm_eligible)
                 attempts += 1
             
             globals.DM_MOOD = new_mood