Personalized I Don't Have Time to Worry: Jonathan James Youth 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 Youth T-Shirt - Kelly Green gives your child a reminder that worrying takes up way too much time. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.