Crack Chicken Tacos

Name: Crack Chicken Tacos
Cuisine: Mexican, Latin American, American
Ingredients: 3-4 boneless skinless chicken breasts (cut into 2" pieces); 1 cup all-purpose flour; 2 cups panko bread crumbs; 2 eggs (beaten); 2 Tablespoons water; Salt and pepper (to taste); 1 cup barbecue sauce; 1/2 cup brown sugar; 2 Tablespoons lime juice; 1 teaspoon minced garlic; 8 Small flour tortillas; 1/2 head butter lettuce; Ranch dressing (for drizzling)