Sometimes it wood be fine to destroy goods. If you are in a war and the enemy is about to conquer your town, you should be able to destroy valueable goods like gold, silver, weapons, horses, ... So they can't fall into the hands of the enemy. If you have plenty of one specific good (e.g. furs) and the storage will be overfilled and you will loose some other valueable goods. Often I would like to build an Track (to store some goods), and get lack of 1 tool, 1 horse, 1 sailcloth ... grrr Or if you put the goods on a ship you should be able to drop them simply into the ocean ... (I already hear greta thunberg shout: "How dare you..." ) Of course this shouldn't be possible immediatly, but should take (at least) 1 turn of preparation time. And it shouldn't be able to be canceled.