On Cinco de Mayo in 2009, a year before the events relevant to this appeal, there was an altercation on campus between a group of predominantly Caucasian students and a group of Mexican students. The groups exchanged profanities and threats. Some students hung a makeshift American flag on one of the trees on campus, and as they did, the group of Caucasian students began clapping and chanting “USA.” A group of Mexican students had been walking around with the Mexican flag, and in response to the white students’ flag-raising, one Mexican student shouted “f*** them white boys, f*** them white boys.” When Assistant Principal Miguel Rodriguez told the student to stop using profane language, the student said, “But Rodriguez, they are racist. They are being racist. F*** them white boys. Let’s f*** them up.” Rodriguez removed the student from the area….

At least one party to this appeal, student M.D., wore American flag clothing to school on Cinco de Mayo 2009. M.D. was approached by a male student who, in the words of the district court, “shoved a Mexican flag at him and said something in Spanish expressing anger at [M.D.’s] clothing.