Most ridiculous reason you stopped reading?
I know we get a lot of these discussions but I've just had to put down a fic and walk away for a hilarious/ridiculous error that meant I just couldn't keep reading. I pushed through the poor characterisation and minimal plot as the kudos numbers suggested this was going to be good. (Reading the reviews after suggests a lot of people loved it.)
The we get to the pre-drinking scehen. Character A pours shots of Bombay Sapphire. Character B, who would in canon absolutely know what Bombay Sapphire is, ask what it is and why it's electric blue. Character C tells them it's called Sapphire for a reason.
Electric. Blue. Gin. I've made colour changing gin, I know it can be purple/blue. But not electric blue. And absolutely not Bombay Sapphire.
Maybe the author is teetotal, or more likely too young to drink. Or maybe as a gin drinker my exoectations are too high for people to realise rhe bottles are coloured and gin is clear. But if you don't know don't guess at something so oddly specific. I just laughed in despair and that was the inaccuracy straw that broke the camels back, so to speak.
What really silly thing has made you just burst out laughing (not in a good way) and just stop a fic dead?