I read the book but haven't seen the ice climbing scene yet. Thought it was kind of funny at first but when one climber feel it made it much more realistic to me.
But, any who, came across this article for any fans out there. http://www.reddit.com/r/asoiaf/comments/1fr588/spoilers_all_a_dwarfs_perspective_on_tyrion/
Patiently waitin on book six. :-(