Our day got messed up real quickly! I mentioned to DH that the water pressure was down in the shower. He started checking things. Water heater is leaking. It is one of those new-fangled tankless, tiny things, and it is in the master bedroom closet!
Good things are: the plumber was here within 10 minutes of our call. Water heater is less than 1 1/2 years old, and has a lifetime warranty, master bedroom is now clean.