Last night I had a dream where I don't know anything except that I was apparently designing a video game, and one of the elements was this, like ... map, that was subdivided into regions. Initially, it was a complete grid, but I didn't think that would look good, so I set it up so that the vertical lines separating each individual cell would be rotated by a random amount. Not in the code, I was going to do it manually.
It was reasonably accurate about how the standard kinds of PRNGs I'm used to have an inclusive minimum and an exclusive maximum, though.