Sunday: Octopus.

You are walking along the city/country/extra-dimensional street of the area you call home or at least are visiting at the moment and you come across..... a bucket.

It appears to contain water. As well as a small octopus.

Someone has scrawled on the outside of the bucket, in possibly Sharpie (or just paint if you don't have Sharpies in your world), IF FOUND PLEASE RETURN TO [smudged beyond readability].

React.