I recently had my second knee replacement (in December) and I’ve been feeling good about my progress. Over my 20-plus year marketing/sales career, I’ve traveled often. A few weekends ago, my husband Joe, and I, traveled for the first time since my operations. We attended his niece’s wedding in Dallas, so we flew from Indianapolis. We got a good parking spot and entered the terminal. We each had a large suitcase to check, I had a purse and Joe had his mom’s birthday present. We hopped on the moving walkway and stood to one side. My suitcase had the 360-degree wheels so it was in front of me. We hear…