It’s the weekend, and that means you don’t have to return to your rush hour commute until Monday. While the MBTA was its usual unreliable self this week, it seems like the commuter rail wins for causing the most headaches. However, you might have spotted Mayor Marty Walsh on your Friday morning ride into work – the elected official took to the T to see what it’s really like underground. Of course, the usual delays were suspiciously missing.