The Art of Wit

I love wit (and sarcasm). I don't know why, but I do. I love to dish it out, and think of clever things to say on a whim. However, it seems to lose its appeal slightly when it is dished to me, especially by my young, growing older-by-the-minute daughter who is beginning to learn the art of wit (and sarcasm, too, might I add).

Example:

Me: "What is that under Grace's chin? Is that a pen mark?"

Ray: "It's a vein."

Grace: "Don't you know what a vein is, nurse?"