One More Minute!

I've been doing the classic parent move of giving Jonah a one-minute warning (typically a very arbitrary unit of measure that lasts as little or as long as Mommy wants) before we end bath, go to bed, or otherwise end something he hasn't said he is "all done" with.  So, I tell him "one more minute!"  And Jonah holds up his finger and shakes it at me, as if to agree to my terms, "yes, Mommy, I need one more minute!"