Years ago, my then-BF and I were on a road trip from NY to Florida and back. On the way home, we stopped at an Arby's in North or South Carolina (can't remember which one) and I proceeded to have a Philly cheesesteak sandwich and a strawberry milkshake, and it was a blazing hot day in the middle of July. WTF was I thinking eating and drinking two things that are guaranteed to make you shit? And in the heat and humidity as well. Stupid stupid stupid. 20 minutes later, we're in the car going up I-95 when I suddenly had to shit like I've never shit before. It was awful, my asscrack was sweating so bad it soaked through my shorts. My asshole (ha!) boyfriend insisted that I could make it to the next exit, he was pissed (ha!) that I had to shit at all. I began SCREAMING at him to pull over on the shoulder because I was about to shit my pants. He ignored me until I screamed "If you don't pull the fuck over RIGHT NOW I am going to SHIT all over your FUCKING Lexus!" He pulled over.
I proceeded to drop my pants, squat, and take a giant, runny, Niagara Falls shit right on the asphalt of I-95. Cars speeding by were honking at me. It was the single most embarassing fucking moment of my life. I wiped my ass with leftover Arby's napkins.
After I got back in the car, my BF kept saying over and over, "I can't believe I just watched you take a shit on the highway." We broke up several months later for unrelated reasons