FYI - the student who went ballistic has a disability, too. The "behavior problem" is almost certainly enough to get him classified as EBD, ODD, and probably more. SPED teachers who are teaching the SPED students assigned to them are not "culpable" - they are doing their job. The placement for the student is wrong. Would you discuss the different SPED student in your classes with other parents, staff, people off the street?