SAN FRANCISCO, CA - NOVEMBER 15: Leukemia survivor Miles, 5, dressed as BatKid, runs the bases as part of a Make-A-Wish foundation fulfillment at AT&T Park November 15, 2013 in San Francisco. The Make-A-Wish Greater Bay Area foundation turned the city into Gotham City for Miles by creating a day-long event bringing his wish to be BatKid to life. (Photo by Ramin Talaie/Getty Images)