a) The general reaction of the household. Would we manage to stay in with a relatively good atmosphere (apart from the to-be-expected "grr sempai is mine, the kitchen is mine- gasp! She's using my knife!" and the "I must protect Master from this strange maid! Avaunt, fiend!")?
b) So it'd work if we just went in, got to work, and then if asked what we were doing, said "I was hired by mistress Taiga, you'll want to take it up with her"?
c) EVERYBODY- Sigh. Except Ilya. spoilsport