We'll See

Miss Gracie has me figured out. 

When she asks to do something I really don't want her to do, I say "We'll see" in an attempt to distract her until she forgets about it.

Last night she asked, "Can we paint my nails tonight mommy?"  I didn't have time to do this particular activity last night, so I said, "We'll see."

Grace: "No mommy, don't say we'll see.  That means you won't do it!"

Uh oh, what do I do now?