A California yoga instructor has been fired for her disapproving stink-eye glare at a Facebook employee using a cellphone in class.

Alice Van Ness, who was hired to teach hour-long yoga sessions at Facebook's Menlo Park campus, said that she would tell students before class to turn off their cellphones.

But a female employee pulled out her cellphone in the middle of a Monday session and began texting.

The San Jose Mercury News said Van Ness didn't say anything, but she gave the student what she calls a look of disapproval.

The student later complained and Van Ness was fired by Plus One Health Management.

The termination letter said Van Ness "made a spectacle" of the student.