The scenario: The power was out but it came back up. However, a friend or family member noticed that late and said:
Oh, the power is back up!
You noticed that long before they did (sometimes because it is obvious). You want to comment on/about their late notice sarcastically with something like:
What? You've been sleeping?
Good morning! (as if they have just woken up)
What idioms that you natives use in such a situation? Of course the sarcastic ones!
Edit:Could this idiom also be used?
Wonders never cease! and Will wonders never Cease! Prov. What an amazing thing has happened! (Said when something very surprising happens. Somewhat ironic; can imply that the surprising thing should have happened before, but did not.) Fred: Hi, honey. I cleaned the kitchen for you. Ellen: Wonders never cease! Jill: Did you hear? The company is allowing us to take a holiday tomorrow. Jane: Wonders never cease! Not only was my plane on time, the airline also delivered my luggage safely. Will wonders never cease?