The dispatch company I work for discourages us #English teachers from using our cell phones at work. The schools we work at encourage their students to write about their interests in English class. Then they give us the writings to correct because we're native speakers.

But there's often no way to figure out what our students are writing about without some way to look up all of their random special interests. So it's either ignore the company's policy or do a crap job of teaching English.