Diarrhea is hereditary. It runs in your jeans. Nothing like a funny poop joke to brighten up your day and make you think. Printed on our super soft ring-spun & combed cotton unisex T-Shirt. Or upgrade to our Luxury vintage heather edition (cotton/poly blend) for an even softer, more durable, classic look. We print & ship all of our high quality graphic tees in the USA.