Just when we thought we had seen every epidemiologic injury study possible in our journal and others, along comes one from Keim et al. (doi: 10.1542/peds.2011-3348) reporting two decades of injuries associated with bottles, pacifiers, or sippy cups. So what can go wrong with these innocent objects, you ask? While we know it is not good to drink and drive, we learn in this study that it is also not good to put bottles and cups in one’s mouth when walking: injuries will occur — most notably lacerations. Your knowledge cup will runneth over once you see what can happen with what we usually think of as relatively innocuous devices — compared to other injury risks our patients encounter. Perhaps after reading this article you’ll add bottles, pacifiers, and sippy cups to the list.