Schools have long banned students from smoking, but a growing number are employing drug tests to detect whether pupils are using tobacco.

What about banning students meeting teachers in their offices alone?

In the newspaper is a story about how Chinese universities are banning students from wearing their beepers to class because too many go off at once.

During this time, some public schools in the United States banned students from wearing blue jeans.

The Starbucks adjacent to the high school here has been banning students from sitting down there, according to interviews with students and parents.

One or two universities have attempted to ban students who wear headscarves, but most have not.

And in most states, districts can ban out-of-district students.

In 2013 the school received national media attention after banning male students from having pompadour style haircuts.

"By the 1780's Yale had to ban students from carrying weapons," she said.