Texting is distracting, motherfucker. Particularly when it's a small class, in a small classroom, where people are already having trouble because they never take notes because writing is HAAAARD. (I tried to let them use laptops to take notes, but a) it was distracting to other students and b) people promptly tried to use laptops to cheat during exams).

My "favorite" example so far this year was the girl who told me she couldn't stop texting when I told her to because she had to know whether her boyfriend was going to break up with her. I told her that someone who would dump her by text message is no prize and to put it away.