UPDATE: So I just received an email from Grandma Kathy, as she just happens to work at the same school Luke is attending... and she just let me know:
so I wanted to tell you the rest of the story about Cowboy Luke. After Luke came in the building the photographer for our yearbook was taking pictures of some of the kids so she had Mr. Hallock (the principle)and Luke stand by each other and took a picture of them. So now because he was just a little bit late. . . he will be in the yearbook with Mr. Hallock! And another funny thing . . . since the horse was not allowed in the classroom he parked it by Grandma's desk and he brought my versace candy dish next to the horse so that he could "eat". Hilarious!