diff --git a/sleekxmpp/stanza/iq.py b/sleekxmpp/stanza/iq.py
index 3961ead..a9c9c4b 100644
--- a/sleekxmpp/stanza/iq.py
+++ b/sleekxmpp/stanza/iq.py
@@ -65,21 +65,19 @@ class Iq(StanzaBase):
 				return ns
 		return ''
 	
+	def reply(self):
+		self['type'] = 'result'
+		StanzaBase.reply(self)
+		return self
+	
 	def delQuery(self):
 		for child in self.getchildren():
 			if child.tag.endswith('query'):
 				self.xml.remove(child)
 		return self
 	
-	def unhandled(self):
-		pass
-		# returned unhandled error
-	
-	def exception(self, traceback=None):
-		pass
-	
 	def send(self, block=True, timeout=10):
-		if block:
+		if block and self['type'] in ('get', 'set'):
 			waitfor = Waiter('IqWait_%s' % self['id'], MatcherId(self['id']))
 			self.stream.registerHandler(waitfor)
 			StanzaBase.send(self)
diff --git a/sleekxmpp/xmlstream/stanzabase.py b/sleekxmpp/xmlstream/stanzabase.py
index 49ddc30..d941b8c 100644
--- a/sleekxmpp/xmlstream/stanzabase.py
+++ b/sleekxmpp/xmlstream/stanzabase.py
@@ -214,8 +214,8 @@ class StanzaBase(ElementBase):
 	def clear(self):
 		for child in self.xml.getchildren():
 			self.xml.remove(child)
-		for plugin in self.plugins:
-			del self.plugins[plugin]
+		#for plugin in list(self.plugins.keys()):
+		#	del self.plugins[plugin]
 	
 	def reply(self):
 		self['from'], self['to'] = self['to'], self['from']
diff --git a/sleekxmpp/xmlstream/xmlstream.py b/sleekxmpp/xmlstream/xmlstream.py
index 7372903..ee88450 100644
--- a/sleekxmpp/xmlstream/xmlstream.py
+++ b/sleekxmpp/xmlstream/xmlstream.py
@@ -257,14 +257,15 @@ class XMLStream(object):
 				break
 		if stanza is None:
 			stanza = StanzaBase(self, xmlobj)
+		unhandled = True
 		for handler in self.__handlers:
 			if handler.match(xmlobj):
 				handler.prerun(stanza)
 				self.eventqueue.put(('stanza', handler, stanza))
 				if handler.checkDelete(): self.__handlers.pop(self.__handlers.index(handler))
-			else:
-				stanza.unhandled()
-
+				unhandled = False
+		if unhandled:
+			stanza.unhandled()
 			#loop through handlers and test match
 			#spawn threads as necessary, call handlers, sending Stanza