One of those half inch slugs from that will at least make the bear decide to find an easier meal if it doesn't outright kill it. I prefer the 460 S&W, with it's higher velocity and better range, over the 500. I wouldn't let a bear get within range of the 500. Good dramatic lines on this image. :c)
Very good idea for a pic. Not that it matters but I'm more of a rifle or shotgun kinda guy myself, give me a sawed off 12 gauge, or High Power .35 caliber any day but, it's fun to go shoot a handgun every once in a while.
I'd go with a fast-acting tranq gun...you don't want game wardens arresting you. Very nice shot (no pun intended). i agree with dreamer100: this will make someone think twice about using your computer w/out permission.