C-310 LANDED AT UNCONTROLLED ARPT; FOLLOWING ANOTHER ACFT. WHEN ACFT TOUCHED DOWN; THE PRECEDING ACFT WAS EXITING THE SAME RWY. THE PLT OF THE PRECEDING ACFT COMPLAINED THAT THIS WAS AN UNSAFE AND PROHIBITED PRACTICE.

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I WAS FLYING MY C310 INTO 3CK UNDER THE ORD BRAVO. I CANCELED IFR 10 MI OUT; LISTENED TO THE CTAF; AND DETERMINED THERE WAS WHAT SOUNDED LIKE A STUDENT AND INSTRUCTOR DOING TOUCH-AND-GOES IN THE PATTERN. I IDENTED THEM; ANNOUNCED I HAD THEM IN SIGHT ON THE CTAF; AND THAT I WOULD FOLLOW THEM IN. I EXTENDED MY DOWNWIND UNTIL THEY WERE ALMOST DOWN; ANNOUNCED BASE AND FINAL; AND AS I TOUCHED DOWN THEY WERE JUST STARTING TO TURN OFF THE RWY ONTO THE TXWY AT THE END OF THE RWY. AS HE TURNED OFF; THE SKYHAWK ANGRILY ANNOUNCED ON THE CTAF THAT I WAS 'IN VIOLATION' FOR LNDG WHILE HE WAS STILL ON THE RWY. I WAS CONFUSED BY THAT; SINCE I HAD HIM IN SIGHT CONSTANTLY; AND WAS PREPARED TO GO AROUND IF HE STOPPED ON THE RWY (WHICH HE DID NOT). THE RWY IS SOMEWHAT SHORT (3100 FT); BUT THERE WAS NEVER ANY ISSUE OF SAFETY. I ASSUMED THERE MIGHT BE A LCL PROC REGARDING 2 ACFT OCCUPYING THE RWY; AND SAID SOMETHING ON THE CTAF ABOUT BEING UNAWARE OF SUCH PROC. THE SKYHAWK; NOW EVEN MORE ANGRY; TOLD ME TO READ MY AIM. I AM UNAWARE OF ANY SECTION OF THE AIM THAT PROHIBITS TOUCHING DOWN WHILE ANOTHER ACFT IS NOT YET OFF THE RWY; NOR ANY FAR (EXCEPT THE GENERAL RIGHT-OF-WAY; AND SAFETY OF FLT REGS; NONE OF WHICH WERE VIOLATED. BUT; I AM FILING THIS IN THE EVENT THAT I DID COMMIT A VIOLATION; PARTLY BECAUSE OF THE SEVERAL ANNOUNCEMENTS TO THAT EFFECT OVER THE CTAF.