Oh, ouch! That water damage definitely could ruin your day when you discovered this on the walls! There's also multiple stains from the water damage. I wonder how there's so many different spots, but they're not connected. Did you guys end up calling up some water damage specialists to get this fixed? http://www.svmrestore-victoria.ca/services.php?s=water
I'm a third grade teacher. When the school year started, I walked into my room, and I found something like this. It had rained lots, and the roof had a leak. Not only did it ruin my ceiling, but it also got my carpet, and rotted it out.