Due to plumbing work there will be no hot/cold water from ...So far nothing out of the ordinary and then we get to the fun part
Please make sure that all faucets are in the closed position to avoid any flooding when the water is turned back on.What? Seriously?!? Do you understand what got that second paragraph to show up on the sign? Someone, maybe not in my building, but in some building managed by the same company, somewhere, had to have caused a flood. Someone, somewhere left their sink or their tub or their shower or whatever on, despite the fact there was no water coming out and then left their apartment, took a nap, whatever. And as a result of this, they flooded their apartment and/or other apartments when the water was turned back on.
This is the kind of warning that no one thinks to give until someone has proven themselves stupid enough to require the extra heads up. Being in a position where I've had to give these types of technology related warnings all the time, it cracks me up to see them manifesting themselves in the physical world as well.