Rap music has sometimes been associated with bad behavior, particularly in the media and among certain groups of people. This association can stem from many factors, including the lyrics of some rap songs and the image and behavior of some rap artists. 

One aspect of rap music that has been criticized is the lyrics of some songs, which can contain explicit language and themes of violence, drug use, and misogyny. Some argue that these lyrics promote or glorify negative behavior and can harm listeners, particularly young people. 

Another aspect that can contribute to the association of rap music with bad behavior is the image and behavior of some rap artists. Some artists have been involved in legal trouble and criticized for their actions, such as drug use and violent behavior, and have had a bad public image. Media coverage of these controversies can contribute to the perception that rap music is associated with bad behavior. A recent New York Times article discusses how one rap record label has been described as a street gang in Atlanta.  

It's important to note that not all rap music or all rappers are associated with bad behavior. The genre encompasses various styles and themes, and many rap artists have used their platform to address important social issues and advocate for positive change. There is a bad reputation of rap music in some cultures or in some parts of society due to stereotypes and misconceptions about the genre and the people who create and listen to it. 

It's also worth noting that other music genres have faced similar issues throughout history, as people have associated rock, heavy metal, and other genres with negative behavior and social problems.