DEAR ABBY: Regarding "Feels Like a Fool in Gainesville, Fla." (Aug. 11), who complained that her friend "stole" her baby sitter -- I have news for that woman. Baby sitters, even those under 18, aren't indentured servants who serve only one master. A baby sitter is a free agent who can work for anybody she wants. What is that baby sitter supposed to do -- keep her schedule open in the hope this woman is going to call her? What if she doesn't? The baby sitter loses income.