Other than not accepting any rides with ratings other than 4.91-4.99... Call them ! That's it. Sounds simple, right ? And it is. Just call them right away every time.... Tell them you just wanted to make sure you were in the right place. But of course the real reason is, because if they sound like a drunk, belligerent, ,mentally challenged.... Or even the slightest bit arrogant.... Or rude... OR, if they have a bunch of drunken idiots friends trying to interrupt them on the phone... Hit the cancel button quickly, and grab another ride to try again. Who here can't tell by how a person talks if it's going to be a good, smooth ride or not ??? Once again, sorry Uber. But they don't pay me enough to deal with drunken idiots. Jesus, I wish these people all just smoked weed. They would be so much easier to deal with.