Possible Applications of Form?

The link below is to a video titled Tai Chi Master Fu Wing-fei: Applications.  Take a moment to watch it - it's short!  While he is demonstrating a different form's applications, these might be interesting to some of us.  Remember that are be multiple applications for each posture!  What things do you see in these demonstrations?  What lessons can you apply to your own practice and what things might you avoid. 

Leave your thoughts in the comments below.