You should really contact the FAA about that pilot, he sounds like he has severe issues.
Too many pilots are reluctant to report other pilots to the FAA, then later down the road that same pilot has cause great damage.
You would be doing the public a great service to report this individual, nothing will happen to you.
Be a responsible individual and do the right thing.
You dont by any chance go to Embry Riddle in Daytona ?