This is the dream I had last night.
I had just installed some free software when I noticed some water dripping from the ceiling. “Oh no”, I thought, “My water tank has sprung a leak”. The drip started getting worse, and more drips started appearing elsewhere. Eventually the whole room was a torrential downpour.
It was then I noticed the computer screen. Apparently, as part of the terms and conditions I had agreed to allow the software to rain for 40 days per annum.
Moral: Read the terms and conditions before loading software!