I have a friend who went to Boston Univ around the time Stern went there. He told me HS's act is a rip off of the guy who was in charge of the student radio station basck in the 70's. That guy did that shock jock, brash, loudmouth insult DJ stuff way before Stern did.
Seems the guy fired Stern from the student station and to get back when Stern latter got a job in a small western Mass. station he mimiced the style.
Once I was out with my friend and got introduced to a gal who dated the BU station mgr. She also told me that Sterns was fired by her college bf who was even taller than Sterns. I seems her former beau was fired fron a Canadian border station some years later because his act seemed like a HS ripoff.