A Serious Conversation

Today, I had to leave work to buy some parts for my automobile.  As I left, I stopped a co-worker, and this is what was said, in a very serious tone:
Me:   Hey, do you want to get your tools out of the car?
Him: Why?
Me:   You might need them.
Him: Oh, yeah, you might not come back.  You're probably not coming back.  And what if the world ends,    
         and zombies take over.  I'll need my tools.
Me:   Yeah, well, either way, without your tools, I think there are guns in the shop and bullets in the      
          cabinet.
Him:  yeah, I saw those there.
Me:    Either way, if the zombie apocalypse happens while I'm gone, I'll come back for the guns, and pick  
          you up and then we'll go back to my place for my Gloc and bullets.
Him:  Oh, wait, let me grab some duct tape.  You always need that.
Me:    Okay, I'll be back.  And don't forget, aim for the head.