<p>Well, it’s the first day of Writing 39 B, it’s been 20 minutes, and the teacher hasn’t showed up yet. Any idea on how long we have to wait before class is “officially” cancelled, and we can ditch without being marked absent?</p>
<p>Don’t see why not i would go and ask your department though what happened to the teacher</p>
<p>Oh, haha, I found out, but thanks a lot. It’s apparently O.K. to leave after 20 minutes, as long as we created a sign-in sheet. We started to fill it out 25 minutes after class started, finished filling it out, then as we were leaving, teacher walks in -.-</p>
<p>so you guys stayed? </p>
<p>Usually, for mandatory classes its 15-20 min. and you can go.</p>