Index: src/game/Spell.cpp
===================================================================
--- src/game/Spell.cpp	(revision 5006)
+++ src/game/Spell.cpp	(working copy)
@@ -3203,7 +3203,7 @@
 
     //Check whether the cast should be prevented by any state you might have.
     uint8 prevented_reason = 0;
-    if(m_caster->hasUnitState(UNIT_STAT_STUNDED))
+    if(m_caster->hasUnitState(UNIT_STAT_STUNDED) && ( m_spellInfo->Id != 29841 && m_spellInfo->Id != 29842)) // second wind is exception, btw this is ugly spells like that should have own case here to completly ignore any preventions
         prevented_reason = SPELL_FAILED_STUNNED;
     else if(m_caster->hasUnitState(UNIT_STAT_CONFUSED))
         prevented_reason = SPELL_FAILED_CONFUSED;
Index: src/game/SpellAuras.cpp
===================================================================
--- src/game/SpellAuras.cpp	(revision 5006)
+++ src/game/SpellAuras.cpp	(working copy)
@@ -2220,6 +2220,20 @@
         if( m_target->getVictim() )
             m_target->SetOrientation(m_target->GetAngle(m_target->getVictim()));
 
+        // second wind
+        if ( GetSpellProto()->Mechanic == MECHANIC_STUN ){ // only real stuns can proc it
+            // rank 2
+            if ( m_target->HasAura( 29838, 0 ) && !m_target->HasAura( 29842, 1 ) )
+            {
+                m_target->CastSpell( m_target, 29842, true );
+            }
+            // rank 1
+            else if ( m_target->HasAura( 29834, 0 ) && !m_target->HasAura( 29841, 1 ) )
+            {
+                m_target->CastSpell( m_target, 29841, true );
+            }
+        }
+
         // Creature specific
         if(m_target->GetTypeId() != TYPEID_PLAYER)
         {
@@ -2445,6 +2459,18 @@
         if( m_target->getVictim() )
             m_target->SetOrientation(m_target->GetAngle(m_target->getVictim()));
 
+        // second wind
+        // rank 2
+        if ( m_target->HasAura( 29838, 0 ) && !m_target->HasAura( 29842, 1 ) )
+        {
+            m_target->CastSpell( m_target, 29842, true );
+        }
+        // rank 1
+        else if ( m_target->HasAura( 29834, 0 ) && !m_target->HasAura( 29841, 1 ) )
+        {
+            m_target->CastSpell( m_target, 29841, true );
+        }
+
         if(m_target->GetTypeId() == TYPEID_PLAYER)
         {
             WorldPacket data(SMSG_FORCE_MOVE_ROOT, 10);