Ethan Hawke did at least end up marrying his nanny. But not before cheating on Uma Thurman with her in 2003.
While married to model Jerry Hall, Mick Jagger allegedly had a romp in the sack with a nanny named Claire, who was employed to take care of the couple's youngest son.
We have no idea why anyone would sleep with Jon Gosselin. But reports say we can ask Stephanie Santoro, who helped babysit Jon's many kids with Kate Gosselin while the two were still legally married.
Rossdale was dumped by Gwen Stefani after 13 years of marriage. Sources say she caught him with the nanny of their three sons.