The university's first bulletin warned students to be "cautious."

Her supporters said she was responsibly warning students about a real threat.

In some classrooms, school officials warned students that sudden movements might make the dog attack.

I warn students that this is very formulaic, English-teacher writing.

At the school yesterday, even bus drivers warned students not to talk about the incident.

He should also warn students that the people who fail most spectacularly often have the same traits.

But he warned students against being "obscene or provocative."

Storytelling can also warn students of the dangers along the learning path.

The website then warned students, "There has been a report of a possible gunman on campus.

The incident has raised concerns among transit officials and educators who are going into schools to warn students of the dangers.