On a bright and dewy spring morning, I was meeting a friend for a walk around nearby Burke Lake Park, and stopped by a McDonald’s to pick up a couple of Egg McMuffins for our breakfast. I pulled into the parking lot from the north and eased toward the drive-thru. I had company. A big tough guy – beard, hunting gear, “Don’t Tread on Me type” – in a big tough truck – oversize wheels, mud flaps – approached from the south. I was clearly the next in line, but the back of his truck was jutting out into a side street, so I motioned for him to go ahead. His engine roared as if he were taking off on a street race; the truck lurched forward 10 feet and then rocked back as he hit the brakes. Glad I let him go, I thought. Why We Wrote This A surprise gesture at a McDonald's drive-thru brings a fresh reminder of humanity's goodness. He placed his order. I placed mine, and pulled up to the window to pay.  As I presented my credit card, the woman at the register put up a hand.…