My son is 9. He goes to a neighborhood park where he runs into an older kid (11) every now and then. Let's call this kid J. J is an extremely outgoing kid, who almost lives in the park. He has been caught using abusive language several times, and comes from a lower middle class family (only mentioning that to provide context for some questions that might arise from reading the next paragraph). He has been carrying a cell phone with him since he was 9.
Of late, he has been looking for excuses to tell my son, that his parents (my husband and I) are spoiling him. For instance, when my son discusses a new toy with his other friends, J butts in and says that my son is being spoilt. My son retaliated, by asking how being given a toy is worse than being given a cell phone, to which the boy said, it was not just the toy, but all the other expensive things my son owns. Upon probing, we figured that J was referring to the play structure and trampoline we have at our home. My son was caught off guard and did not know what to say. Also, when my son retaliated with the point about the phone, J's friend supported J by telling my son, that J's parents can give him whatever he wants. My son is younger than both the boys by 2 years, so he couldn't tell the other kid, that the point about parents buying whatever they wanted applies to everyone, but the other kid conveniently chose to not bring it up when his friend J made that remark. Also, this friend of J butts in all the time, even though my son has never rubbed him the wrong way. Today when it happened again, my son told him to mind his own business, to which J stepped in and said that it was not a private property, so anyone could say anything.
J also has anger management issues and threatens kids that he might just lose it! I am looking for ideas on what my son can say the next time, his parents are unnecessarily brought into a discussion, and also when J threatens him saying things like if he loses it, he will see that my son doesn't come out of it alive.