User:SOTO/Forum Archive/The Reference Desk/@comment-6511852-20130302022313/@comment-6433721-20130306071953
From Tardis Wiki, the free Doctor Who reference
In The Shakespeare Code, he tells Martha something like, "Walk about like you own the place. It's what I do." If I can stray to speculate for a moment, I do like the mild perception filter idea, but the Doctor would have put it in the sonic. ;)