'who am i?! im basically the king of this fucking castle while my bitch sister is away! so don't be asking me any stupid questions!'

'um, sorry...' you say politely.

milton lets out a weird, annoyed whine. 'did my sister send you? aurelia?'

lie 'yes, aurelia sent me. i'm only here on an errand, please excuse me.'

or

say 'no. and i don't much care for her from what i've seen, or this estate.'