diff --git a/FlatCAMApp.py b/FlatCAMApp.py
index 3858ee4b..5f9dbff7 100644
--- a/FlatCAMApp.py
+++ b/FlatCAMApp.py
@@ -1579,7 +1579,7 @@ class App(QtCore.QObject):
                 app_obj.progress.emit(0)
                 self.log.error(str(e))
                 raise
-                return
+                #return
 
             # Further parsing
             self.progress.emit(70)  # TODO: Note the mixture of self and app_obj used here
diff --git a/FlatCAMDraw.py b/FlatCAMDraw.py
index 7051c70b..620a402e 100644
--- a/FlatCAMDraw.py
+++ b/FlatCAMDraw.py
@@ -546,6 +546,7 @@ class FlatCAMDraw(QtCore.QObject):
         self.add_polygon_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/polygon32.png'), 'Add Polygon')
         self.add_path_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/path32.png'), 'Add Path')
         self.union_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/union32.png'), 'Polygon Union')
+        self.intersection_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/intersection32.png'), 'Polygon Intersection')
         self.subtract_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/subtract32.png'), 'Polygon Subtraction')
         self.cutpath_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/cutpath32.png'), 'Cut Path')
         self.move_btn = self.drawing_toolbar.addAction(QtGui.QIcon('share/move32.png'), "Move Objects 'm'")
@@ -581,6 +582,7 @@ class FlatCAMDraw(QtCore.QObject):
         self.canvas.mpl_connect('key_release_event', self.on_canvas_key_release)
 
         self.union_btn.triggered.connect(self.union)
+        self.intersection_btn.triggered.connect(self.intersection)
         self.subtract_btn.triggered.connect(self.subtract)
         self.cutpath_btn.triggered.connect(self.cutpath)
         self.delete_btn.triggered.connect(self.on_delete_btn)
@@ -1185,6 +1187,32 @@ class FlatCAMDraw(QtCore.QObject):
 
         self.replot()
 
+    def intersection(self):
+        """
+        Makes intersectino of selected polygons. Original polygons are deleted.
+
+        :return: None
+        """
+
+        shapes = self.get_selected()
+
+        results = shapes[0].geo
+
+        for shape in shapes[1:]:
+            results = results.intersection(shape.geo)
+
+        # Delete originals.
+        for_deletion = [s for s in self.get_selected()]
+        for shape in for_deletion:
+            self.delete_shape(shape)
+
+        # Selected geometry is now gone!
+        self.selected = []
+
+        self.add_shape(DrawToolShape(results))
+
+        self.replot()
+
     def subtract(self):
         selected = self.get_selected()
         tools = selected[1:]
diff --git a/FlatCAMProcess.py b/FlatCAMProcess.py
index 82d71372..eb5059ac 100644
--- a/FlatCAMProcess.py
+++ b/FlatCAMProcess.py
@@ -12,10 +12,13 @@ class FCProcess(object):
         self.descr = descr
 
     def __del__(self):
+        # print "#######################"
+        # print "# FCProcess.__del__() #"
+        # print "#######################"
         self.done()
 
     def done(self):
-        print "FCProcess.done()"
+        # print "FCProcess.done()"
         for fcn in self.callbacks["done"]:
             fcn(self)
 
@@ -108,7 +111,7 @@ class FCVisibleProcessContainer(QtCore.QObject, FCProcessContainer):
         self.something_changed.emit()
 
     def update_view(self):
-        print "FCVisibleProcessContainer.update_view()"
+        # print "FCVisibleProcessContainer.update_view()"
         if len(self.procs) == 0:
             self.view.set_idle()
 
diff --git a/share/intersection16.png b/share/intersection16.png
new file mode 100644
index 00000000..e6298995
Binary files /dev/null and b/share/intersection16.png differ
diff --git a/share/intersection24.png b/share/intersection24.png
new file mode 100644
index 00000000..a756e97c
Binary files /dev/null and b/share/intersection24.png differ
diff --git a/share/intersection32.png b/share/intersection32.png
new file mode 100644
index 00000000..0e3077f6
Binary files /dev/null and b/share/intersection32.png differ
diff --git a/tests/destructor_test.py b/tests/destructor_test.py
new file mode 100644
index 00000000..8d7fa791
--- /dev/null
+++ b/tests/destructor_test.py
@@ -0,0 +1,34 @@
+from time import sleep
+from PyQt4 import QtCore
+from FlatCAMWorker import Worker
+
+class MyObj():
+
+    def __init__(self):
+        pass
+
+    def __del__(self):
+        print "##### Distroyed ######"
+
+
+def parse():
+    o = MyObj()
+    raise Exception("Intentional Exception")
+
+
+if __name__ == "__main__":
+    qo = QtCore.QObject
+    worker = Worker(qo)
+    thr1 = QtCore.QThread()
+    worker.moveToThread(thr1)
+    qo.connect(thr1, QtCore.SIGNAL("started()"), worker.run)
+    thr1.start()
+
+    while True:
+        try:
+            parse()
+            print "Parse returned."
+        except Exception:
+            pass
+        sleep(5)
+        print "Competed successfully."
\ No newline at end of file
diff --git a/tests/toolpath_optimization_profiling/toollist_minimization_profile1.py b/tests/toolpath_optimization_profiling/toollist_minimization_profile1.py
new file mode 100644
index 00000000..cfddc5d3
--- /dev/null
+++ b/tests/toolpath_optimization_profiling/toollist_minimization_profile1.py
@@ -0,0 +1,6 @@
+import cProfile
+import pstats
+from camlib import *
+
+g = Geometry()
+