"Dad said not to go outside till he came back." Sam's face scrunched up with worry. "Are you sure it's okay?"
Dean nudged the little boy forward in the ticket line. "I'm sure," he answered carelessly.
"Are you sure?" Sam asked anxiously. "He said you had two stripes already and you've only got one left."
Confused, Dean frowned down at him, then he laughed.
"Strikes, Sammy, not stripes," he corrected. "And I don't care. Dad promised you the zoo on your sixth birthday, and that's more important than anything." He leaned over and whispered conspiratorially, "Especially some stupid vampire hunt."