What do you think of this inlaw question?

1. Yes, it is rude not to say anything to the person who spent hours cooking for us, and 2. No, I would not cook for they anymore, but I would not spend money on them either. Don�t you see they don�t care if you cooked or not, all they want is to be belly filled!!! Chip in and have them pay for their meal... Now, that�s the right thing to do! After that they may appreciate a little more your ushering!