Foundations. With chloeas.
He'd finished patrol early enough that night that he was pretty confident swinging by the Watchtower would give him a chance to catch Chloe. He'd even brought Chinese food in addition to the spare coffee pot he'd promised he'd bring her when hers had stopped working. But instead of using his key, which while appreciated, he didn't want to use unless necessary. This was, after all, her place. And she'd always shown him the courtesy of knocking or calling ahead before showing up on his doorstep. It was only polite to return the favor. So he knocked and waited.