Calm down, don't freak. Unless you have little rivulets of water running down the back of your closet and the shirt that your husband was supposed to wear to his job interview might be forever ruined you are not allowed to get upset. Do you fulfill these requirements? I didn't think so.
You could argue that it is quite uncommon having water in your closet and it would be undeniably true. I keep going there and checking - believe you me, checking 20 times doesn't change the fact a bit. There's water in my closet.
Off now to contact the super, our landlord, the RCMP or the fire department (they know about water, don't they?) to stop the water in my closet. On second thought, a plumber might do, too.