Young adults who experience negative consequences from using both alcohol and cannabis simultaneously are likely to have fewer drinks the next time they drink, but are more likely to use cannabis and alcohol together. This unexpected finding from a study just published in Alcohol: Clinical and Experimental Research may suggest that young adults associate negative consequences with their drinking, not the combination of alcohol and cannabis use. The study highlights nuanced opportunities for ‘teachable moments’ to help reduce the harmful consequences of using cannabis and alcohol together.