Jack-Jack Attack 
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Kari: You must be the replacement sitter!
Syndrome: Why, yes. Yes, I am.
Kari: Thank God! Hey, what does that S stand for?
Syndrome: Um, um, well, it stands for, Sitter. Yeah, Sitter. I was gonna go around with Baby-Sitter, BS, but you know why I couldn't do that.
"Jack-Jack Attack Quotes." Quotes.net. STANDS4 LLC, 2014. Web. 10 Mar. 2014. <http://www.quotes.net/movies/Jack-Jack Attack>.