Just as long as they don't find anything Frohike might have left behind.
It might be interesting but I'd want a slightly clearer idea of whether we could be of use to them. If we'd end up behind a desk doing endless paperwork, I don't think either of us would be terribly happy with that.
Or they fall off when we're off somewhere in the middle of nowhere on a case. Which would give the cleaners plenty of time in their normal work patterns.