Never underestimate the power of a uniform.

An Oklahoma teen fired from Walmart is accused of using his store uniform to pose as a store manager at three locations and steal $30,000, authorities said.

The 17-year-old con man simply claimed he was there to do inventory before the December holidays, police said.

The youth would either stuff bundles of cash from a back room into his pockets or thieve right from the cash register, KFOR TV reported.

It took police a month to nab the Norman, Okla., resident. The teen, whose antics were caught on surveillance footage, was finally arrested when he tried to pull his impersonation act at a store in Norman, police said.