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7 Things You Didn't Know About NCIS' "Return To Sender"

The cemetery that opened the episode is home to many green parrots, which are thought to be from a Pasadena nursery that burned down in 1969.

The cemetery that opened the episode is home to many green parrots, which are thought to be from a Pasadena nursery that burned down in 1969.

While pretty to look at, the birds were very noisy—much to the chagrin of the show's sound department.

The cemetery also contained an 1891 gravestone erected for a USMC Private by his Commanding Officer.

The cemetery also contained an 1891 gravestone erected for a USMC Private by his Commanding Officer.

Less than three percent of all containers entering the U.S. are scanned by customs.

Less than three percent of all containers entering the U.S. are scanned by customs.

The fictional "Lazer Zone" arena is actually a local, functioning game center co-owned by the NCIS Stunt Coordinator.

Episode writers are typically asked to provide copy for prop documents, like the

Episode writers are typically asked to provide copy for prop documents, like the "Lazer Zone" brochure featured in the episode.

The line "Destroy Your Co-Workers!" was a particular favorite of writer Christopher J. Walid.

The reason Tony was able to purchase a posh apartment came from an idea suggested by Michael Weatherly.

The reason Tony was able to purchase a posh apartment came from an idea suggested by Michael Weatherly.

Production filmed the triple homicide crime scene, which Tony and McGee examined in the elevator, but decided not to show it onscreen.

Production filmed the triple homicide crime scene, which Tony and McGee examined in the elevator, but decided not to show it onscreen.

"It couldn't compare to the viewer's imagination," writer Christopher J. Walid explained.