"This is the part where we cover our asses.  You were in the classroom, with me and everyone else, not but a few minutes ago.  Everyone saw us leave.  We haven't had time to do anything to Noriko-sensei.  Calling the authorities and handing over the shoe are actually our best bet - we have to appear to be on the level.  In fact, I think you should be the one to talk to them.  If we don't act like we have anything to hide, we should be fine.  And...well, I've been in some trouble myself before, as well.  Before I came to Japan.  I have the same concerns that you do."  After dialling, he hands the cell phone toward Masato.