That's great! I would have liked some frantic clawing at the briefcase as the end or a head bouncing toward the camera, but it was pretty cool.

You could have done more of a punchline by having him see another person and call for help, and that person shows that he or she is also cuffed to a briefcase. That person explodes, and our protagonist becomes frantic.

Maybe he notices two boulders butted together and swings the briefcase into the crevice so that the stones protect from the explosion when the bomb goes off.

Dazed but out of immediate danger, he stumbles to a Lamborghini parked nearby.....

I'm not going to kid you, it starts to get a little expensive at that point.

I really liked that, Nice one Tom

I'm going to assume "that cunt" is me.    Sorry bro, I meant that in good fun, although I can see how it might come off as a bit dick-ish.

Please accept my heartiest approval for your latest effort.  May you be one step closer to your plan for world domination.