So, is this a driver shortage or a NextMuni glitch? It's hard to know for sure. It's also hard to care -- after all, from a rider's perspective, does it really matter? When you log on to NextMuni.com and see something like this, all you care about is adjusting your travel plans so that they don't involve the bus.

Fortunately, things were back to normal the next day -- there were four buses on the route, with two of them bunched-up. Wait times ranged from two minutes to an hour. Another jorb well done, Muni!