Steven Shane Uman, 40, of Dallas, was stopped at the Eden Prairie, Minn., Target store last week after an employee allegedly saw him remove a bar code label from a breast pump retailing for $249.99, replacing it with a fake label so $34.99 rang up, the St. Paul Pioneer Press reported Friday. When confronted, Uman admitted to the switch, according to a search warrant affidavit.

The suspect inadvertently alerted authorities to a much bigger robbery scheme, police said, when he expressed concern about his dog left in a car.

When police check on the dog -- which was OK -- they saw a list of Target stores. After receiving the search warrant, police found three breast pumps, two hand-held video monitors, fraudulent Target coupons and bar code labels, gift cards for Target and Wal-Mart, and $1,900 in cash, the Pioneer Press said.

Joy Gauster, the Target employee who caught Uman, told police the case involved "numerous stores in Minnesota" dating to July, the affidavit said.