Training my dog to kill.

I posted a video I took of my roommate and brother playing with my dog. He is pretty viscous, well not really, but he sounds like he is.
http://www.youtube.com/watch?v=TC5yNIW4a-c

 

Just like weeeeeeeeeeeeeeeeeeeeeeeee into the tv

 

He looks cool. How old is it?

 

He just turned 8 in January, bulldogs are only supposed to live to around 8, but he seems to be in perfect health, so I figure he has atleast another 3-4 years.