CANOGA PARK, LOS ANGELES (KABC) -- Surveillance video inside a Canoga Park doughnut shop captured the moment a woman threw hot coffee into the owner's face.Screams and chaos erupted inside the shop after it happened. The Spudnuts owner, Cindy Seam-Kao, said her face still hurts, but she went back to work Saturday.The frightening encounter happened Friday morning. She said a customer's young daughter began crying because the woman was wailing."I actually asked her to quiet down because she was scaring the girl, or leave, and she said eff you and just threw the coffee at me," she said.Employees and customers told the woman to leave and called the police. Cindy said it's not the first time the woman has been in her shop."She's definitely homeless and mentally ill. So we've had her in here several times, but she's just yelled or she'll curse at somebody, but she's never been this violent," she said.Cindy said she has a number of homeless customers and believes everybody should be treated equally, but after the experience she may be more cautious."This is kind of a hard situation to deal with when you feel compassion for people and it kind of backfires," she said.The woman was able to get away, but if arrested she will likely face serious charges.