DEAR ABBY: I have been happily married to “Roger” for 20 years and have two kids still at home. They are pretty independent now, but my husband was very involved in coaching and volunteering when they were younger. Sometimes when Roger and I take walks, we run into children playing in a yard or biking up and down the block. If they initiate conversation, I’ll smile at them and respond with a quick “hi” or “nice bike” and keep walking, but my husband will stop to chat or listen to what they say. I have told him not to do ...