text: what are the signs of a personality disorder ? i think my sons dad has this problem .. here are the things that make me think so..not in any particular order 1. sleeps all the time. 2.violent behavior  3.breaks things and has no remorse for doing so. 4.threats of cruelty to animals 5.unwillin to take any responsibility for wrong doing 6.28 years old and will not look for regular employment 7.hangs out in the hood and now dresses to fit in , talks differently around his "hood" friends 8.blames problems on others 9. moodiness 10. drug use he may have a personality disorder, but some points are unclear in your question.has he had periods w/o these signs in his life? what exactly means cruelty & violence in his behavior? has he commited any crime or had problem with police? does he sometimes have good opinion about oters?.. you'd better to talk to a psychiatrist