It's good to be grateful for things.
Kevin is at John's wedding and gives him an envelope full of cash as a gift.
John wants to respond to Kevin's gift.
John thanks Kevin and tells him he didn't have to give him such a generous gift.
John tells Kevin that he thought Kevin would give him more than that and throws the envelope into a pile of gifts.
Kevin feels good that John is happy and is delighted to see his friend full of joy.
Kevin is saddened that John is unappreciative and is embarrassed that his gift wans't good enough.