He scowled at the mention of the doors. "I'm..." he began, but bit off his usual reply to people talking about them. The Doctor hadn't once tried to make him go through. He listened. "The doors are gonna close, though," he pointed out, still fairly sullen.
He winced at the Doctor's welt, then nodded as he mentioned K9. "He was there, he... he helped." Huh. It was still quiet, but thinking was more of a struggle than he was used to. Stupid fucking fog. "I, uh. I use scent now. Sight's useless. Hearing... might as well be. Sometimes all I can hear is the fog. I get about by scent."