See the guy in the photo? I don't know him. Well, that's what I thought initially. While out testing lenses a friend let me borrow, he appeared in the frame and I thought to myself "what an awesome, candid stride-by."

A few hours later, I saw a shot on my Instagram feed from Millennium Park taken around the same time I was there. Turns out, it was posted by Marc - the guy in my shot (I noticed the same hat in his profile picture) - whom I've been following for a while now. We've never actually met and didn't get a chance to formally meet, but what a small world huh?