I DO think you should tape a little sign in one of the cupboards your sister-in-law might check that says:
SMILE! YOU'RE ON CANDID CAMERA!!
We love you, Spooky..:)))
OMGosh, that's great. I was thinking about stacking up a bunch of aluminum cans inside the pantry or something. LOL She's a nice lady, she's just a little too high strung and perfect for easy going me. Whew! She wears me out.