Thanks for the replies.
FYI, I’m not in fear of this guy, he’s just disruptive.
Changing seats is not possible as its a very small room we are in.
I actually have captured some of his nonsense noise on my phone.
The topic did come up today when speaking with the boss, but he seems to think it’s all pretty amusing. The boss is a young guy who i like, but he’s not real professional and has no filter at all, so i hesitate to tell him much for fear he could repeat it.