I rememeber havign to leat lunch with a neighbor as a child.  This neighbor lady would serve fake nasty canned meat. I regularly stuffed in the chair cushions. my older sister never gave me up. as long as I passed my dessert to her under the table.
What was the reason behind your wanting to destroy those cushions?
I didn't want to destroy the cushions. I just didn't want to eat that nasty food.
You should not be forced to eat something that you do not like.   You also should not have put food under a cushion.   You would have destroyed their furniture and possible brought bugs in their house cause more problems than if you just stated that you did not care for the dish.
You don't know how foul that food was.
Even so, you should either have ate the food or asked to be served something else.