Usually "discretion" implies needing to be in a place where others cannot hear. Where else would that be right now other than inside the house?

[ Though Vanitas is a rather whimsical sort from time to time. He doesn't necessarily mind "humoring" anyone. But the doorstep works just fine for the time being, thanks. Vanitas doesn't care for unknowns and even less for people that remind him a little too much of a particular old man. ]

Dependent? [ Lelouch you might have to be more specific - oh. Theft. Well there's only one thing in the house that steals things. ] Oh. You might as well say goodbye because you're probably not getting it back.