him I'd take a photo on my iPhone of my turds so he could see the unique Giardia colour ..." "They're a different colour?" asked Campbell, intrigued. "Yeah! Well because the Giardia stops your intestine from absorbing any fat they're like a greasy ..." I began, about to describe this unique colour, but I stopped when I noticed Campbell and Goober turning red in the face and holding back laughter, and followed their glances to the next table where an elderly couple had paused in their eating, forks poised in mid-air, due to mental images of Giardiasis-induced diarrhea.