I think it is morpheme i think but dont remeber
When your text states that communication is unavoidable, it means that people will probably associate meaning to your actions, even when you don not intend to speak of something.
According to how the narrative is made, specifically how he tells us what he's done and his situation, it can be intuited that he was struggling in that time and needed to eat, so he had to steal some food but he was planning to return it as soon as possible.
plastic bags spread more then alot of other garbage and makes its way to sea creatures much easier, where they could be mistaken for jellyfish and eaten, which would be harmfull to the sea creature.