diff --git a/dibi/drivers/mssql.php b/dibi/drivers/mssql.php
index 73078d5..3d9726b 100644
--- a/dibi/drivers/mssql.php
+++ b/dibi/drivers/mssql.php
@@ -100,7 +100,7 @@ class DibiMSSqlDriver extends DibiDriver
 
     public function insertId()
     {
-        return FALSE;
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
@@ -155,7 +155,7 @@ class DibiMSSqlDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
diff --git a/dibi/drivers/mysql.php b/dibi/drivers/mysql.php
index 8acf533..9a0cf67 100644
--- a/dibi/drivers/mysql.php
+++ b/dibi/drivers/mysql.php
@@ -193,7 +193,7 @@ class DibiMySqlDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
diff --git a/dibi/drivers/mysqli.php b/dibi/drivers/mysqli.php
index 25bc74c..ffd3381 100644
--- a/dibi/drivers/mysqli.php
+++ b/dibi/drivers/mysqli.php
@@ -169,7 +169,7 @@ class DibiMySqliDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
diff --git a/dibi/drivers/odbc.php b/dibi/drivers/odbc.php
index 539e711..bd2168c 100644
--- a/dibi/drivers/odbc.php
+++ b/dibi/drivers/odbc.php
@@ -180,7 +180,7 @@ class DibiOdbcDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
diff --git a/dibi/drivers/pdo.php b/dibi/drivers/pdo.php
index dda4123..d94b312 100644
--- a/dibi/drivers/pdo.php
+++ b/dibi/drivers/pdo.php
@@ -129,8 +129,7 @@ class DibiPdoDriver extends DibiDriver
     public function escape($value, $appendQuotes = TRUE)
     {
         if (!$appendQuotes) {
-            trigger_error('dibi: escaping without qoutes is not supported by PDO', E_USER_WARNING);
-            return NULL;
+            throw new DibiException('Escaping without qoutes is not supported by PDO');
         }
         return $this->getConnection()->quote($value);
     }
@@ -147,7 +146,7 @@ class DibiPdoDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
@@ -157,7 +156,7 @@ class DibiPdoDriver extends DibiDriver
      */
     public function applyLimit(&$sql, $limit, $offset = 0)
     {
-        trigger_error('Meta is not implemented.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 } // class DibiPdoDriver
diff --git a/dibi/drivers/postgre.php b/dibi/drivers/postgre.php
index df3d752..b97b67d 100644
--- a/dibi/drivers/postgre.php
+++ b/dibi/drivers/postgre.php
@@ -170,7 +170,7 @@ class DibiPostgreDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }
 
 
diff --git a/dibi/drivers/sqlite.php b/dibi/drivers/sqlite.php
index 35d6cbb..2a576bc 100644
--- a/dibi/drivers/sqlite.php
+++ b/dibi/drivers/sqlite.php
@@ -158,7 +158,7 @@ class DibiSqliteDriver extends DibiDriver
 
     public function getMetaData()
     {
-        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+        throw new DibiException(__METHOD__ . ' is not implemented');
     }