Uber's autonomous ridesharing cars appear to be running into snags just a few weeks into their Pittsburgh test runs. Quartz has gathered multiple reports of the self-driving vehicles getting into accidents or otherwise having trouble, some more serious than others. Officially, Uber is only aware of an incident where another car bumped the fender of one of its rides. That's fine given that human drivers frequently pose the biggest danger to robotic cars, and it's difficult to account for all possible behavior. However, Nathan Stachelek also recorded video of a driver manually turning a self-driving car around after it went the wrong way down a one-way street -- suffice it to say this could have created major problems if there was oncoming traffic.