A Menards employee faces retail theft charges after intentionally under-ringing customers, costing the store more than $2,000 in lost sales, police said. On Tuesday, 39-year-old Vonnie R. Hansen allowed a shopper to leave the store with $341 worth of merchandise, despite having charged the customer only $17, the complaint stated. Similar thefts occurred July 12, when Hansen is accused of charging only $4 for what should have been a $408 sale, and $39 for a $1,794 sale, police said. The Menards at 2100 Lake Ave., Woodstock, lost about $2,416 as a result of the transactions. Reached by phone Wednesday, the store manager declined to comment on the charges. Authorities are in the process of reviewing video footage from the store.