So i got a little problem. I was playing Infinity Blade II for the last few minutes, while having a conversation (imessage) and a facebook chat on my mac. I stated getting notifications on my iphone so I thought I switch on "Do not disturb" do have a quiet gaming session. It didn't work. Still had banners and sound notifications which was really annoying. Anyone else experienced something similar or could I have missed some settings? Thanks in advance!