Had Tony been one of Steve's firefighters, he might have given him a look for the language, but since the other man was both injured and not in the fire captain's line of supervision, he shifted his weight a little awkwardly and decided to focus on the butler. Butlers were safe.
"Isn't the butler in charge of the kitchen and the rest of the staff? I'm not sure--" Oh. Right. "...have you ever seen Clue? That's in Clue." In Tim Curry's thirty-second throwaway line. Okay. So perhaps Steve also secretly enjoyed Downton Abbey.
"Butlers make me think of British movies. Housekeepers make me think of Sherlock Holmes' landlady."