It seems that she decides to let loose from the waist down with only two people: Rob and Abu (my mother). It's almost as if a thought bubble pops in her head: "Ooh, it's Daddy changing me, I have a surprise for him," or "Ah, it's Abu... she's next." She has peed unexpectedly with me, but not to the point of spontaneous explosion. Not yet anyway.
Perhaps this is an omen of things to come: she'll be able to get away with anything with Dad and Abu, but not with Mom. If that's the case, good. Let's see if she'll ever be able to pull a fast one on me.
Yeah, she only LOOKS innocent.