This is what happens when an energetic 20 year old bikes 10 miles each way to work and hangs out doing art with 7-12 year olds all morning. She comes home exhausted from the Boys and Girls Club. Mom's not surprised, but all those promises to walk the dog this summer are getting overwhelmed with "lesson plans" and "quiet time to recover." Ah, the beauty of 20. What's for dinner, mom?