My grandson lawyer yelled screamed and cussed me in his office? Can we fire him for his conduct?

My grandson had a pickup order for him. Called his lawyer and ask for him to call back. Waited he never returned call. I called police department found it was issued for failure to appear that day in court. I went to our lawyers office waited for an hour and when he saw me sitting there he started yelling screaming cussing using the F word. Saying he was not going to take the heat for this. I was trying to tell him we had no ideal my grandson had a court date and I had tried to call him to find out what was going on with case as I had some papers faxed to him. He went on to say that he had to deal with to many people. He didn't know who to call and when I told I was the one who hired and paid him and I was the one to deal with. I am my grandson's legal guardian, but he stays with his other grandmother when I am out of town working. His mother(lives in an other state) has been at a couple of hearings and to his office but has no contact with the lawyer other than that.