When David Yearsley, 11, was taking his fifth-grade school photo, he'd thought he'd jazz things up a bit - with a knitted beard hat, no less.
"I had no idea he was going to do it," his mom, Sonja Yearsley, of West Richland, Washington, told ABC News. "It was all his idea."
He goes everywhere with the soon-to-be eight-grader [Rachel Benke], including accepting awards at school, celebrating birthdays, and even on the school track where he one day sprung into action. "Her aide was holding Taxi on the side and he just started pulling away from the aide as hard as he could trying to get to Rachel," [Theresa] Benke said. She said once they got her inside, Rachel had a grand mal seizure, and Taxi wouldn't leave the girl's side. "I don't know how Taxi new this, but he wouldn't let anyone near her until the paramedics arrived,"- KHOU 11.