Thanks to all moms. Yes, he would sit on high-chair while at home until we changed the maid!! However, it isn't that bad now. He could sit on sofa and watch Barney, Hi-5, Sesame Street, etc. until he's full while at home. BUT...the problem is when we dine out. He eats few spoons and draws about 10 minutes, then his patient is gone. He will ask to go out and see fish, fountain, etc.
We only dine-out twice a week (Sat. and Sun.), not sure how we could cut down....coz I don't think twice a week is a lot.