“Avoid sexist, racist, related jokes homophobic/transphobic, and/or religious stories, jokes, etc.,” the guidelines say, adding. “Avoid statements or labels that convey prejudice.”
When referring to racial or cultural groups the guideline tells teachers to avoid the terms Pakistani, Afghan, Korean, Indian or Chinese. Instead, use the appropriate country name, “a person from Pakistan” the guideline says.
For that last example, is "excitable yokel" acceptable?