Invite 30 nannies to a gab-fest.
Make sure there's at least 1 picture for the householder.
Listen (sort-of) to the nannies' 30 tales of exploitation and illegal treatment.
Do nothing (i.e., 0).
Say there were too many horror stories and forget all of them.
Leave it that way until someone blows the whistle, then insist you did everything properly.