Shifty  eyes.  Black  hats.  Gunsmoke. This grill ain't big enough for the two of us. Are you fast enough?  MEAN enough? This southwestern chicken is out for revenge. Today we're making grilled chicken and zucchini.  Cooking meat and vegetables over fire is a human-basic skill that everyone should know how to do properly.  It's easy and it makes food taste better.... LOTS better.   Before we can do that, we need to talk about grills. A grill is a tool, Marian; no better or no worse than any other tool: an ax, a shovel or anything.  A grill is as good or as bad as the man using it.  Remember that. This is a grill.  It holds the fire that you put the food over.  The best fire is made with wood, burned down until it becomes hot coals.  No one has time for this, so the second best option is charcoal (natural lump is best, briquettes are still good), because this is wood that has already been burned, and then deprived of oxygen when it be