There are so many good books out there, why waste your time reading one that's BORRRRRING. Unless you're too far into it and you physically need to know what happens....then you should finish it :)
Go to another. You should never make yourself rea anything. You should enjoy it. If you find your not interested in it maybe you'll come back to it later and find it captivating, maybe not. No matter what all the critics, reviews, recomendations, whatever say, don't read something you don't want to, it'll just make you hate reading.
It depends on how bad the book is...
I had to stop reading a book called Thirst like 3 chapters in because it was making me want to set myself on fire...just saying lol
i try to read as much as i can, and if it dosent get any better ill just stop reading it, but if i have nothing to read at all, ill just start reading it aggain..
i say it depends on the auther. if i like the auther, i'd go on, because sometimes the ending ties the whole thing up & u realize that is was a good story 2 match the end. if i dont like the auther, then i put it back, and mabe ill try reading it again. mabe the next time ill understand and itll b interesting.
if it's boring , i usually start with another book. This recently happend when I picked "A case of need" , Micheal Cricton, up. I bored myself half to death. Later I went to the store and bought "Patriot Games" from Tom Clancy. Good Book.
I try to finish it. I hate to stop reading books, because you never know whether the rest of the book is good, but if I really can't stand it then I'll stop reading it.
If I start a book that seems slow or boring I go to the very last page of the book and read the last few paragraphs. If, after reading that, I want to know how that ending came about I will "slog" thru the dull stuff to get to the end. I read the last paragraphs and they seem predictable then I just quit reading and select another book.
I learned this method when reading any of the Charles Dickens books because his first 8-10 chapters are Always dead doring before you get to the "good" parts.