Preheat the oven to 425 degrees F. Line a baking sheet with foil and place an oven safe wire rack over top.

Cut each chicken breast into 1" cubes, about 12 per (24 total). 

Wrap each in bacon and insert a toothpick in the center to secure. Arrange on wire rack in a single layer. 

Sprinkle brown sugar heavily over the bacon bites. Bake for 25-30 minutes, until bacon is crispy and cooked through.

Meanwhile, in your slow cooker, whisk together the pineapple juice, teriyaki sauce, Worcestershire sauce, rum, ketchup, and cayenne.

When bites are cooked through, carefully transfer to slow cooker and toss with sauce. Cover and keep on low to heat through.

Top with scallions if you're feeling fancy to a hungry crowd.