SCHLOCK: Chelle, my sense of smell just got me hired to do security here. Mister Zysk wants me sniffing for explosives and food poisoning.
'CHELLE: That's great! You won't have to play janitor anymore, and we'll get a break in this case.
SCHLOCK: Unless Zysk is in on it, whatever 'it' is, and this is just a way to keep tabs on me.
'CHELLE: True. But hey, at least you--
SCHLOCK: *interrupting* He told me to keep doing the janitor thing as a cover.