A San Rafael woman was arrested on allegations she stole a 14-year-old boy’s e-cigarette money.

Alexis Marie Campion, 21, was booked into Marin County Jail on suspicion of robbery and violating the terms of her probation. Her bail was set at $75,000.

The incident was reported at about 2:40 p.m. at a gas station at Bellam Boulevard and Francisco Boulevard East. The boy told police that he approached a woman and offered to give her about $40 to buy him e-cigarettes, with the understanding she could keep the change, said San Rafael police Cpl. Ronda Reese.

The woman agreed to the deal, but when she emerged from the gas station market, she did not have the nicotine vaporizing product, the boy reported. When he asked for his money back, the woman allegedly lifted her shirt slightly to reveal a handgun in her waistband.

The woman left and the boy called police, identifying the gun as a Colt 1911 pistol. He said he knew the model because he had seen the same gun in a video game, Reese said.

Police found Campion at the Wendy’s restaurant on Andersen Drive and identified her as the suspect.

Campion did not have a gun with her, Reese said.

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