So what is the appropriate response to adults who don't answer when you speak to them?
Just this morning, I came down the hall at work and told a co-worker, who has a habit of not replying when spoken to, that I had fulfilled a request she made of me. She stared at me as though she were irritated and once again refused to speak. I'm used to her so I just left but honestly, I want to call out loudly, "I SAID, I DID WHAT YOU ASKED ME TO DO, DIDN'T YOU HEAR ME?" And no, she isn't hard of hearing. No we don't have a history. No, she has no reason to dislike me. It just seems she doesn't feel she needs to speak when someone addresses her.