I have 'Do Not Disturb' on, but I'm still being disturbed.

Title pretty much says it all, but here are some particulars...

* iPad mini, 32 GB, iOS 6.1.3

* Do Not Disturb is set to ON in settings.

* It is it not on a schedule. It is simply set to ON.

* Ordinarily, I will just turn the switch on the side of the device on, however, some games and other programs ( for example, You Don't Know Jack) won't play audio with that switch on.

Am I missing something?