Today: chirping at a crosswalk.
I was biking to class, and as I was stopped at an intersection, I heard that familiar chirping noise. I was oddly disappointed when it seemed to stop short, and then I realized I wasn't standing at 77 Mass Ave, waiting to rush across four lanes to get to a class or meeting. And then I really realized I wasn't standing at 77 Mass Ave and wouldn't get to for a while (at least not as a legit MIT student).