In 1998, a "study of 518 music videos from 4 popular music video networks, contained almost 15% of interpersonal violence, with an average of 6 violent acts per violence-containing video." [6] As for music genre, " 20% of rap videos portrayed violence, and the carrying of weapons was the highest in rock and rap videos." [7]. The three videos chosen as examples all deal with violence in some way, but the perpetrators of the violence have different motivations. In "Man Down," the protagonist is driven to violence by PTSD and mental illness. In "Uncle Tom's Cabin," the violence is motivated by slavery and racism. And in "Goodbye Earl," the violence is motivated by.