He is a noisy eater. 
I've mentioned it and mentioned it and for the love of god I just want him to close his mouth while he eats
He says again and again that he'll try, but it never gets any better.
i know ithe grand scheme of things its trivial, but to me it's akin to scraping nails down a blackboard and it drives me insane, my 2 year old has better table manners than him!
I'm starting to think that this is never going to change, it's too ingrained in him, AIBU?