It sounds like he is really enjoying himself and is reading you all very well, the same as he has always done. I could never help laughing when he dive bombed people, but when he tried to chew my hats and hoods off, it made me panicky. It took a couple of years to get used to him body slamming my head. He does a complete surprise attack sometimes. I am laughing thinking about it, and those dishtowel fights every morning.
When we ate and he thought his food was boring, he sort of stayed off to the side and would run in like a chicken to grab a piece of bread or something. He was really obvious, watching us like a vulture! Not sure why some birds just love human food and others won't touch it.
It is so funny that he is giving your mom the business. He is the funniest bird I have ever seen.