This is a note to self: Learn not to say profanity even when you are alone. Your daughters are ninjas and they are there even if you think they are not. They will follow you around and take every word you say to use on their own convenient time.
A couple of weeks ago, my daughters were watching teasers of Minnie's Bow-toons online. As soon as the video buffered, I heard my two-year old innocently say "Oh F*ck!" like it is just a regular word. My five-year old was very quick to spot the chance to tell her sister off. "Mommmy, Nemo said Oh F*ck.. that is bad, right?"