When you make a mess, you’ve got to clean up your toys. It’s a lesson many of us learned as kids, and one that a Los Angeles Airport law enforcement officials says police slipped up on after a stick of live dynamite used in a training exercise was left behind near the airport museum for four days.

A law enforcement official at LAX who was brief on the incident spoke to the Associated Press anonymously, saying that the live stick of dynamite was found by workers on Tuesday when they saw its bright colors.

The insider said the stick was found inside the “Spirit of Seventy Six” plane, which is featured at the Flight Path Learning Center and Museum on the airport’s southern edge. It’d been checked out from a Transportation Security Administration explosive storage container and used in a training session for K9 Officers and their dogs on Saturday.

Though it was live, it still would’ve needed a detonator or explosive to be set off.

Nothing that though the object found in the plane did contain “a certain amount of TNT,” an LAX police spokeswoman denied to the AP that it was a stick of dynamite and said the object was a “training aid.” She added that airport police are investigating and have notified the TSA, which did not immediately comment to the AP.

Dynamite left on old plane at LAX for 4 days after police training exercise, says official [Associated Press]

Want more consumer news? Visit our parent organization, Consumer Reports, for the latest on scams, recalls, and other consumer issues.