Believe it or not, I had both at one time in my class. Together they bonded and tried to make it harder not only for me but the other students as well. I did the usual, verbal and written warnings, but that still did not help. After doing some "research" I learned that they had some major issues going on outside of class.I did everything in my power to help and make it clear how much I was not going to tolerate their actions. Needless to say, any interuptions and so forth I did have the support of the school. One did not pass and the other some how made it out. There is only so much you can do for these people but, the biggest support I got was my Supervisors and the school.