Diarrhea is Hereditary - Women's T-ShirtGiving a toilet paper roll the confident swagger of a 1940s cartoon mascot is already unhinged, but making him the spokesperson for a jeans genes diarrhea pun elevates it to folk art. Somewhere your uncle is still proud of this joke. The Details: Arched black text reads "DIARRHEA IS HEREDITARY" in bold retro block lettering. A black rubber hose style cartoon toilet paper roll mascot walks mid stride with dot eyes, rosy cheeks, one hand pointing