Personalized I Don't Have Time to Worry: Jonathan James Long Sleeve T-Shirt. From the children's book, "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt, I Don't Have Time to Worry: Jonathan James Long Sleeve T-Shirt - Athletic Heather gives your child a reminder that worrying takes up way too much time. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL