GET A FISH BOX TURN IT UPSIDE DOWN PLACE A STICK TO KEEP THE BOX UP AT ONE SIDE PLACE FOOD UNDER THE BOX TIE A ROPE TO THE STICK LONG ENOUGH SO UR OUT OF SITE SO WHEN IT GOES UNDER THE BOX TO GET THE FOOD POOL THE STRING TO CATCH IT IN THE BOX THEN CAREFULLY LIFT TO CATCH IT . USED TO DO THIS EVERY TIME I STAYED AT MY AUNTYS IN ABERDEEN YEARS AGO WORKS A TREET