Sometime after teaching my students the names and locations of their large muscle groups, a third grade girl thought she would try to impress me. I was pulling cafeteria duty when she yells across her lunch table. "Mrs. Orange, Mrs. Orange, I know my muscles!" I said "OK, show me." She proceeded to point to each muscle and call it by name. When she got down to the last one she hesitated for a moment and said "and...?? oh, yeah...G-string! (as she pointed to the back of her thigh). I said, "I think you mean hamstring."