I stopped reading "Guns, Germs, and Steel" because ultimately I felt like I had already read the damned book! While on vacation in Australia and New Zealand Mansi would constantly recite all of the most interesting bits and pieces from GGS which, naturally, made me want to read the book more and more. Of course by the time she was finished and I started it, we had entered Spoiler City and there was nothing left of the book but the husk. The rind. The shell. All the juicy bits had been chewed up, swallowed, regurgitated, and fed to me through a straw. My turn at the table was entirely unnecessary.

On the other hand it meant I didn't have to plow my way through 1000 pages of natural history and I didn't even have to purchase the Cliff notes, saving both time and money. I can also toss out interesting facts at cocktail parties ("Did you know New Zealand used to have a giant bird called a Moa? Bigger than a house and deadly to the Maori's who hunted it." - "Tell us more oh wise one!" - "Oh, I will...") without actually having to do the work.
Who's the real loser in this entire travesty of high school-esque reading shenanigans? Jared Diamond.

So Jared Diamond, if you're looking to roof one of your many houses with more gold-plated shingles and find you don't have enough in your bank account to accomplish the job...well sir, you can thank Mansi P. Goel. The book ruiner.
Send over the hired goons as your leisure, I'll open the door for them.