Oh No I Told Our Secret!

Hey everyone! So I was hanging out with my big sister today and we were talking about all these super secret family things. You know, the ones that every kid has to share with their sibling but not tell anyone else? Well, I got a bit too excited while telling her our favorite hidden spot in the backyard where we keep old toys (it's like our own little museum of childhood stuff) and accidentally blurted out that she gave me a nickname when I was really little. Like, one I only ever used with each other! Oops! Now my parents know something they weren't supposed to. Can you believe it? They never would have guessed it themselves if we hadn't talked about it. Do you guys ever accidentally spill your family secrets like that? How do you handle it?