When scolded, the Cajun couldn't help his curling grin and he shrugged his good shoulder up, but would continue on their trek unhindered. It was only once they were settling down, and the Doctor was (thankfully) taking the offered coat and using it to his advantage, that the red-head let out his own little groan of pleasure, turning his head to the side when the integrity of his shoulder came into question. "Better 'den your back, I t'ink, mon ami. It hur', but I coul' go on for hours. Days. Weeks. Mon'hs." He paused then, rethinking that, before flashing another easy-going grin towards his traveling companion. "Non. It hur's. I need 'dis res' too. I t'ink I need a slin'." A sling would definitely help with the pain, but the best thing he had was the pocket of his jacket, and it seemed to be doing alright for the time. Better than just letting it hang there, anyway.
"You know, si vous avez voulu, I coul' ligh' up 'dis en'ire place like a bul', so we can see down 'de halls real far." He could make the walls glow. The only problem was.. "But if anyone in here, 'dey gon' see it. 'Dey gon' know we here." Because, the pair were being rather quiet, so it was likely that if someone else was here, they hadn't noticed them yet. But.. "An' if any 'dose trap doors open, 'dey gon' let out 'de ligh' like a beam." He made a gesture with his hand, using the boot, as if to demonstrate what it would do. He failed, of course. But the Doctor had a good imagination and he could figure it out for himself. A glowing tunnel entrance in the middle of a pitch-black night.