"That's not good. If the hallucinations start to affect the Doctor I vote for an immediate get the heck out of here." Caitlyn said firmly. She did not want to know what his head would generate. 
"I agree. Its not safe if you get all crazier. What do you want to do Doctor?" Rose asks him knowing in the end it was up to him what they would do. She didn't want to know neither what he would hallucinate about.