A store manager overheard a clerk saying to a customer, "No, madam, we haven't had any for some weeks now. And it doesn't look as if we'll be getting any in the foreseeable future."
Alarmed by what was being said, the manager rushed over to the customer who was walking out the door and said, "That isn't true, madam. Of course, we'll have some soon. In fact, we placed an order for some just a couple of weeks ago and we're expecting it any day now."
Then the manager drew the clerk aside and growled, "Never, never, never say we don't have something. If we don't have it, always explain that we have ordered it and it's on its way. OK?
"OK" said the clerk.
"Now, what was it she was enquiring about?" Asked the manager.
"Rain", said the clerk.