I was inspecting communications facilities in Alaska. Since I had little experience flying in small planes, I was nervous when we approached a landing strip in a snow-covered area. The pilot descended to just a couple hundred feet, then gunned both engines, climbed and circled back. While my heart pounded, the passenger next to me seemed calm. "I wonder why the pilot didn’t land," I said.
"He was checking to see if the landing strip was plowed," the man replied.
As we made a second approach, I glanced out the window. "It looks plowed to me," I commented.
"No," my neighbor replied. "It hasn’t been cleared for some time."
"How can you tell?" I asked.
"Because," the man informed me, "I’m the guy who drives the plow."