Constitutional Law. Schools and School Districts. Prohibition of Long Hair Absent Showing of Actual Disruption Violates High School Student's Constitutional Rights. Breen v. Kahl, 419 F. 2d 1034 (7th Cir. 1969), Cert. Denied, 398 U. S. 937 (1970). Requirement That High School Students Shave Is Valid If Founded on a Rational Basis. Stevenson v. Board of Education, 426 F. 2d 1154 (5th Cir.), Cert. Denied, 400 U. S. 957 (1970)