I can understand how a caller's arrogance might irk a radio talk show host. I remember a caller starting his rebuttal with a condescending, "Oh, ho, ho, ho..." "Well, hee, hee, hee, hee," the host responded. "Ha, ha, ha, ha! Hee, hee, hee, hee, hee, hee, hee, hee, hee!"
I didn't blame the host for laughing. Sometimes, a caller's attitude warrants it.