Roger stopped chuckling but he was still grinning. Cho was definitely not happy with him, but she'd get over it. "Sorry," he did apologize, especially hearing her growl.
"I only just noticed you were asleep after I got the coffee," Roger explained, but he was already reaching over for her empty mug. "You stay awake, I'll be right back," Roger said with a wink as he went to fetch her coffee.
He was back in no time and handed her the warm mug. "That will help. How much longer do you have before you go home anyway? You obviously need sleep."