Place the pork roast on a 22" x 18" piece of heavy-duty aluminum
foil. Combine liquid smoke and the soy sauce; sprinkle over the roast.
Wash the unpeeled bananas and place one on each side of the pork roast.
Pull sides of foil up around pork roast; add water and seal foil tightly;
wrap again with another large piece of foil. Place in a shallow baking
pan or bowl; refrigerate overnight, turning several times. Place the foil-wrapped
meat in crockpot; cook on low for 8 to 10 hours. Drain and discard bananas
and the juices. Shred meat with fork to serve.