Black Friday 2011: Chaos Sweeps Nation on Retailers' Big Day

Alongside sales and long lines, some shoppers were greeted with violence as American consumers embarked on what is traditionally the year's largest shopping day.

Shoppers pepper-sprayed one another in the battle for bargains, while in at least one incident a shopper was shot for her merchandise.

In Los Angeles, authorities were reviewing Wal-Mart surveillance footage after a woman pepper-sprayed others to gain preferred access to a variety of locations in the store, L.A. Fire Capt. James Carson told the Los Angeles Times.

In Myrtle Beach, S.C., Wal-Mart shopper Tonia Robbins, 55, was accosted at about 1 a.m. on Friday after a shopping spree. The robber demanded her purse and then shot her in the foot.

In San Leandro, Calif., a woman was shot outside a Wal-Mart store after reportedly refusing to give up her merchandise to robbers.

According to the Bay City News Service, the woman is in critical, but stable, condition at a nearby hospital. A suspect, who the woman's family members found and detained in a nearby field, is in custody.