In the pool, something monstrous was stirring.
Beside the pool at least one person was observing this with some level of concern.
“Uh, should we do something about that?” They asked.
One of their peers cast an eye over, briefly, before turning away again with a shrug.
“Nah, it’s fine. It’s within the limits.”
The limits being the lines on the side of the pool, connected to the rules also written near to the pool - the rules stating what to do when the limits were reached. Simple stuff. Indeed, the monstrous thing in the pool was not near any limits, but that was only because it was deliberately avoiding them.
“But it’s avoiding the limits,” pointed out the first person, rightly. Even as they watched the monstrous thing opened one monstrous eye, spied out the limits, and again moved around them expertly. It knew exactly what it was doing.
“Rules don’t say anything about that,” said their peer, unconcerned.
In the pool, there came bubbles.