Nao sei se é o sitio certo para meter isto mas têm mesmo de ver:
Defense yourself:
Lesson 1: http://www.youtube.com/watch?v=TWElNmN5Mhs
Lesson 2: http://www.youtube.com/watch?v=VRZWA...feature=fvwrel
Lesson 3: http://www.youtube.com/watch?v=R0mGX...feature=fvwrel
Lesson 4: http://www.youtube.com/watch?v=Ev-zN...feature=fvwrel
Lesson 5: http://www.youtube.com/watch?v=7i97p...feature=fvwrel