When you talk with your GM about a plan of action and how the mechanics work at length, well before a game, you make sure all sides are up to speed on what you want to do and how it works, and that everything checks out and is green for go...
And you drop it at the table, and the GM has to look it up again, groans, and acknowledges that your batshit plan is not only mechanically sound (but otherwise broken b/c the rules are often hot garbage at high level play), but so narratively interesting that there's no reason not to.
(Lv10 Cleric that could murder a Tarrasque by hand, solo, without casting a single spell on the Tarrasque OR using Divine Intervention on the Tarrasque, completely by RAW mechanics, PHB only if needed. The Tarrasque is completely uninvolved in my above shenanigans, but it's an example of the absurdity of power available.)
I'm a Mage player, by trade - it's my bread and butter to gleefully acknowledge the abject absurdity of the reality in which I find myself, and engage with it to the fullest extent. >:D