I sympathized with your gastro- intestinal order on the flight last night, really I did. After an unfortunate run in with a Ditsch pizza from Frankfurt Airport some time ago, I was in your same proverbial place. What I did not do however, was bring a hardcover book into the toilet with me... I really don't care if you have a bookshelf installed in your bathroom at home, the SHARED toilets on a jet are not a place to linger.
ps- the 8 bags of potato chips you are along with the 4 candy bars probably did not help your situation any..