A teacher preparing her classroom for the first day of school had a surprise visitor: a wild bear.

Elaine Salmon, an elementary school teacher in Pine Mountain Club, California, said she left her classroom Tuesday evening to make copies in the school office ahead of the upcoming start of the new school year.

When she returned, she said a bear was in her classroom.

“I opened my classroom door and there was this bear charging towards the door,” Salmon told ABC Bakersfield affiliate KERO-TV. “I … closed the door, locked the bear in there, and then I went back to the office to call my husband.”