Mike Willock writes: You might very well ask, “What connection does grace possibly have to do with a flat tire?” Let me explain. Recently, I drove this car to St. Louis Area Foodbank in Maryland Heights to pick up 350 lb of food and bring it to the church. That’s a trip of about 50 miles, including long stretches of I-70 eastbound at 60+ mph in heavy traffic to Kingshighway, Page and Taylor and later I-64 westbound home at noon. The previous day I had driven to Hugh and Pat Neilson’s apartment on 14th St. to share a final communion with Hugh and Pat and their family before they left for Denver, driving another 40+ miles on I-64 and city streets. When I got home on Friday I parked the car in our driveway and went inside. Later that day I found the left front tire flat. That’s when I took this picture. This was not an ordinary flat tire – not a puncture that would deflate the tire over several minutes. This was a valve stem failure. The end of the stem with the infl...