My mom and I have read all of the series. My mom has even read the two short stories associated with the series.
My dad started to read the book, and stopped reading when
Spoiler
Jaime threw Bran out the window
. After he got unmad he progressed pretty far into the book and again stopped reading when
Spoiler
Eddard was killed.
. After he cooled down again he made it all the way to the third book following you guessed it as his favorite character and then blam.
Spoiler
Red Wedding.
Thus he stopped reading. I've never seen a human being get so mad at a book.