Cell phones are magnets for our attention, but you can, of course, face significant legal jeopardy for giving them that attention. Just ask the "safety driver" of an Uber self-driving vehicle, which hit and killed a pedestrian in Arizona in 2018. According to authorities, the driver was watching The Voice on Hulu just before the crash—and was then charged with negligent homicide. These kinds of cases are always tragic because they feel so easily avoidable, but they also happen with enough regularity that it's easy to tune them out.