diff --git a/src/observersmanager.hpp b/src/observersmanager.hpp
index b5340ef..db59f0b 100644
--- a/src/observersmanager.hpp
+++ b/src/observersmanager.hpp
@@ -28,6 +28,14 @@
 #include <tree.hh>
 #include <boost/iterator/transform_iterator.hpp>
 
+#if defined(__GNUC__) && __GNUC__ >= 2 && !defined(NDEBUG)
+#	define OBS_MANAGER_LOG
+#endif
+
+#if defined(OBS_MANAGER_LOG)
+#	include <iostream>
+#endif
+
 namespace cloonel {
 	template <typename T>
 	class ObserversManager {
@@ -61,7 +69,7 @@ namespace cloonel {
 		typedef boost::transform_iterator<std::function<T&(TicketedWrapper&)>, TreeIteratorType> iterator;
 
 		ObserversManager ( void );
-		~ObserversManager ( void ) noexcept = default;
+		~ObserversManager ( void ) noexcept;
 
 		TicketType Add ( T parObserver, TicketType parParent=Ticket_Null );
 		void Remove ( TicketType parTicket ) noexcept;
@@ -85,6 +93,13 @@ namespace cloonel {
 	{
 	}
 
+	///--------------------------------------------------------------------------
+	///--------------------------------------------------------------------------
+	template <typename T>
+	ObserversManager<T>::~ObserversManager() noexcept {
+		assert(m_tree.empty());
+	}
+
 	///--------------------------------------------------------------------------
 	///--------------------------------------------------------------------------
 	template <typename T>
@@ -95,6 +110,9 @@ namespace cloonel {
 		else
 			m_tree.append_child(GetByTicket_AssertPresent(parParent), TicketedWrapper(parObserver, currTicket));
 
+#if defined(OBS_MANAGER_LOG)
+		std::cout << __PRETTY_FUNCTION__ << " registering " << currTicket << " as a child of " << parParent << "\n";
+#endif
 		++m_nextTicket;
 		return currTicket;
 	}
@@ -104,6 +122,11 @@ namespace cloonel {
 	template <typename T>
 	void ObserversManager<T>::Remove (TicketType parTicket) noexcept {
 		auto deleme = GetByTicket_AssertPresent(parTicket);
+#if defined(OBS_MANAGER_LOG)
+		for (auto it(deleme); it != m_tree.end(); ++it) {
+			std::cout << __PRETTY_FUNCTION__ << " unregistering " << it->ticket << "\n";
+		}
+#endif
 		m_tree.erase(deleme);
 		if (parTicket == m_nextTicket - 1)
 			--m_nextTicket;
@@ -126,4 +149,7 @@ namespace cloonel {
 	}
 } //namespace cloonel
 
+#if defined(OBS_MANAGER_LOG)
+#	undef OBS_MANAGER_LOG
+#endif
 #endif