CARJ RETURNS TO DEP ARPT WHEN REVERSE UNLOCK LIGHT IS DISPLAYED SHORTLY AFTER TKOF.

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AFTER TKOF FROM ZZZ; WE GOT A R THRUST REVERSER UNLOCKED CAUTION MESSAGE AND FELT A SLIGHT BUFFET. WE COMPLETED ALL NORMAL AND QRH CHKLISTS AND COORD A RETURN TO ZZZ ARPT WITH ATC. WE BRIEFED THE FLT ATTENDANT AND THE PAX. THE CAPT SPOKE DIRECTLY TO THE PAX TO DESCRIBE THE NEED TO SHUT DOWN 1 ENG; THAT THIS WAS SIMPLY A PRECAUTION AND THAT THE LNDG WOULD BE QUITE NORMAL. I ALSO TOLD THEM TO EXPECT TO SEE FIRE TRUCKS AFTER LNDG; BUT THAT THIS; TOO; WAS JUST A PRECAUTION. THE TONE WAS POSITIVE AND CONCISE. THE QRH PROC LED US TO SECURE THE R ENG. WE COMPLETED ALL CHKLISTS AND COORD WITH DISPATCH. WE ALSO COORD OUR RETURN WITH ZZZ OPS. DURING THE VISUAL APCH WE GOT A MOMENTARY TCAS RA DUE TO THE PROX OF PARALLEL LNDG TFC. WE HAD EXCELLENT VISUAL CONTACT WITH THE TFC; BOTH OF US BEING STABILIZED. NO EVASIVE MANEUVER WAS REQUIRED OR APPROPRIATE. THE LNDG AND TAXI IN WERE UNEVENTFUL. THE PAX WERE QUITE UPBEAT ON DEPLANING. AFTER CONTRACT MAINT INSPECTED AND DEFERRED THE R THRUST REVERSER; WE COMPLETED THE REVENUE FLT WITH NO FURTHER ANOMALY. NOTE: THIS WAS MY FIRST ACTUAL SHUTDOWN OF AN ENG INFLT IN THE CL65. BOTH MY FO AND I FOUND THE LOUD BEEPING OF THE LOW OIL PRESSURE WARNING TO BE EXTREMELY DISTRACTING. THIS IS ONE OF THE FEW ALERTS THAT IS NOT CANCELABLE (WITHOUT DISABLING THE ENTIRE AUDIO ALERT SYS). IT CONTINUED; EVEN WITH THE ACFT PARKED AT THE GATE -- UNTIL PWR OFF! POSSIBLE DESIGN CHANGE? MY FO AND FLT ATTENDANT DID AN EXCEPTIONAL JOB OF MANAGING THE SITUATION. ONCE AGAIN; CRM PAYS OFF!