Carl had this hide out he'd stay in when he wasn't busy or with his dad. The only person who knew about it was you. You only know about it cause you found it while Carl was trying to relax, which failed. Soon you two became friends and hung out in his hide out pretty often now. As they weren't busy anymore.

Carl layed back with his hat covering his eyes. He was trying to sleep but he heard footsteps come near. “I know you're there.” He calls out.