Yes, it merits saying: Ixnay on the cell phones or other electronics during class!

This kind of goes with the No Talking during class thing above, but really, we’re serious: leave your phone, your headphones, your ipad in your purse, bag or in a storage cubby. Ringers off. Sure, if you’re a doctor on call, OK, we get it – that totally matters. Everyone else just put 'em away. The glow from your device disrupts other people's focus on their workout.