LOW TIME PVT PLT USED POOR JUDGEMENT AND LANDED OVER AN ACFT TAXIING ONTO THE RWY AND DID A TOUCH AND GO.

Narrative

AFTER TURNING ONTO FINAL AT 1 1/2 MI; I CAN SEE A LOW WING ACFT AT HOLD LINE. THERE WAS A RADIO XMISSION OF AN ACFT PULLING ONTO RWY. (I XMITTED MY TURN TO FINAL PREVIOUSLY.) I AGAIN XMITTED TO ACFT I WAS ON SHORT FINAL (1/2 MI); ON VERY SHORT FINAL THE PLANE PULLS ONTO RWY. (MENTAL ERROR #1) I THOUGHT 'HUH?'; MAYBE THIS GUY WANTS ME TO POP OVER HIM; TOUCH AND GO; AND HE WILL 'FOLLOW' ME OUT. (ALSO; IT WAS NOT BUSY IN THE TFC PATTERN AT THAT TIME.) AS I PASS OVER HIM (AT A HIGHER ALT THAN I NORMALLY APCH THE RWY) AND I HEAR HIS ENG REVVING. (MENTAL ERROR #2) CONCENTRATING ON THE XWIND AND LNDG WITH A TOUCH AND GO WITH ONE WHEEL TOUCHING AND THEN RETAKING THE AIR IN A MORE NORMAL FASHION (NORMAL TKOF AFTER A TOUCH AND GO). I THEN EXECUTED ANOTHER DOWNWIND; BASE AND FINAL FOR FULL STOP. SOURED BY AN APPARENT LAPSE IN GOOD JUDGEMENT; I CALLED IT A DAY. I 'KNEW' A MISCOM AND FAILURE TO SEE ME RESULTED IN HIS PULLING ONTO THE RWY. MY ATTN SHOULD HAVE BEEN ON A 'GAR.' I HAVE TALKED TO 2 CFI'S AND CHKED THE FARS FOR REINFORCEMENT OF MY ERROR. I DID NOT FEEL ANIMOSITY TOWARDS THE OTHER PLT DURING THIS EPISODE. I FELT SOME CONFUSION ON WHAT THE OTHER GUY WAS DOING; WHAT HE INTENDED TO DO; AND WHAT HE WAS GOING TO DO. I ASSUMED TOO MUCH AND UNSURE OF MYSELF; WENT ON TO EMBARRASS MYSELF. I KNOW FOR MYSELF; NEXT TIME; I GAR. GOD ONLY KNOWS WHAT THE OTHER PLT DID. I NEVER HEARD ANOTHER WORD ON THE RADIO FROM HIM.