graculus

For me it depends on the quality of the story, how engrossed I am, and what kind of glaring error it is - different people will have different levels of 'glaring'. I've read a fair few stories with errors in them that have made me blink and think 'oh, yeh'? but generally if it's a one off thing and I'm already gripped, I tend to let it go. I've also come across things that I might perceive as an error, but that I'm well aware may not be an error in the country in which the story is set. So unless I really want to stop my reading to research this, I tend to let that go and make a mental note to check it, should it really bother me.

I can't honestly think of any error I've come across that has actually stopped me, or would actually stop me reading a story once I'd started. I tend to be extremely tolerant, more than a lot of people. However, if the error was something really fundamental that was easy to check out (after all something that I might consider glaring, because it's within my sphere of knowledge, might not be that easy to check out, okay I know, so why use it then, but....) then I might be leery about reading something else by said author.

I pretty much tend to finish something once I've started it. There's only one squick I have that will make me put down the story/novel and not pick it up again.