How to remove latex floor paint from white clothing?

my fiance accidently got brown latex floor paint on the sleeve of a really expensive white shirt (cotton, polyester mix) trying to remove it quickly as possibleHow to remove latex floor paint from white clothing?
Goof Off from the hardware store, but don't count on that color coming out..you be stained.How to remove latex floor paint from white clothing?
lacquer thinner or ';Oops';, available at most hardware stores. Blot don't scrub, or you'll embed the stain permanently.

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