That might work for the ones who are explicit about it, but there are also the subtler ones.<p>Like the drivers who won&#x27;t ask but will still give you a low rating if you don&#x27;t offer a tip. And then you have the ones in the middle, who have tip jars sitting in the middle of their car. Source: <a href="http:&#x2F;&#x2F;www.huffingtonpost.com&#x2F;entry&#x2F;uber-driver-complaints-etiquette_55b7eaf7e4b0074ba5a69e69" rel="nofollow">http:&#x2F;&#x2F;www.huffingtonpost.com&#x2F;entry&#x2F;uber-driver-complaints-e...</a><p>Also, while you or I might complain, a lot of people are either too scared to speak up or just figure that a big company like Uber won&#x27;t care, so this kind of stuff just goes unreported.