I've got another example, am I close?
You rent a house from a landlord, paying up front for lifetime use. You expect the landlord to carry out maintenance and repairs for free, but anticipate that some extras like double glazing, air conditioning and an extension will be available. Some of which you may pay for.
You move in, take a shower and notice that the taps aren't fully open, only getting a small spray of water which isn't really enough to keep you clean.
You discover a secret tunnel, that with some minor hazards, allows access to a huge water tank. It was already in the property when you paid for the lifetime rent, so technically it is yours to use. It may even have been left there deliberately, or it may have been forgotten about, or the tunnel may even have been a mistake when part of the property was built. When you get to the tank, by turning the right tap, you get a massive boost of extra water. Use it carefully, and you can keep clean forever whilst you are in the house.
When you moved in, you hoped that you'd get full use of all the water facilities, but you have an empty swimming pool and the strong urge to use the water slide ...
To use the tunnel is breaking any rules as such, but it is there, and you aren't satisfied with the current flow of water. You expect that things will change, but don't know when, nor what those changes will be.
But the tunnel could crumble any day, and the route through is likely to become harder even if it remains passable.