Personalized I Don't Have Time to Worry: Jonathan James Men's Tank Top. From the children's book, "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt, I Don't Have Time to Worry: Jonathan James Men's Tank Top - Athletic Heather gives your child a reminder that worrying takes up way too much time. Pre-shrunk 100% cotton 6.1 ounce Quarter turned Adult: S, M, L, XL, 2XL