My border crossing anecdote. Back in 1991, soon after "Operation Desert Storm," I was stopped and questioned by US Customs at the Manitoba-North Dakota border. Somehow they didn't seem to believe my story about why I was crossing there.
Flying to Grand Forks, ND, then driving to Winnipeg, Manitoba to see a Winnipeg Jets hockey game and then returning to Grand Forks sounds entirely credible, doesn't it? Flying to Grand Forks and driving to Winnipeg was much cheaper than flying directly into Winnipeg.
A supervisor came in, asked a few details about the game, and then let me go.