Your not supposed to guard or lead with your face
Fighting any other way is for wimps!!!!!
Funny story though. The first person to break my nose was my little brother. I say little, he is in age but not in size. I'm 6 ft but he is 6ft 5 and has been since about the age of 14. One day he got annoyed at my piss taking and just before school he spread my nose across my face.