Plantains take up space as they ripen, so giving them space is a form of delayed gratification.  Giving space to ripening plantains is one example of delayed gratification.

When offered a tasty dip, I may not refrain from digging in for the sake of my constant weight loss effort.  This is why it is so helpful for me to never bring into the house that which is fattening and unhealthy, but which provides instant gratification by way of its good taste.