pot-and-beerBoulder overrun by stoned beer drugged driving drunk driving it is a nightmare out there what have you seen? Tell me your stories about almost being run over by crazy drunk drivers stoned drivers texting driver s ? is a combination of all three drivers? isn’t it a mess? Research shows driving impairment increases significantly when alcohol is combined with marijuana use. http://www.drugabuse.gov/publicat…/drugfacts/drugged-driving