One of the most dreaded moments of Christmas is when someone doesn't like the present they got and they have to somehow respond with everyone watching them. Sometimes it is just a really bad present, other times it is a really bad attitude. Our culture is so saturated in consumerism that covetous naturally becomes part of how we live our lives, and very easily starts to ruin Christmas. God has a better way of doing things, and that it to engage gratitude instead of gree.
Philippians 4:6-7, 11-13
Be thankful for what you have, when you have it.