way of the cave

This term is used regarding an event or task to describe a deeply entrenched tradition or convention that applies to it and is expected to be adhered to by those involved with it. Generally used to communicate that, while certain rules or conditions about how things are to be done are inconvenient, its presence is considered ubiquitous and unfeasible to work around. When someone complains about this one must explain "it is the way of the cave".

Like many older idioms (such as "The blood of the covenant is thicker than the water of the womb".) this term has an opposite meaning when spoken in its longer form. Used in this way, the original speaker begins, "It is the way of the cave. Sun or no sun." (or relevant topic)
The second speaker replies "No sun!" Thus declaring they have devised an unexpected way to circumvent the situation in their favor.

The first recorded use of this term was originally found around May of 2014 in the fantasy drama epic titled "The Begun of Tigtone"

"Tyrone! You MUST convert ounces to grams to flip this stash! Do your 3rd grade arithmetic skills justice...by USING all of them.
This is the way of the cave. Weed or no weed."
"No weed," yells Tyrone, as he simply robs the mark of all his cash rather than determining the correct price for the drugs.