This reminds me of a funny story. My friend's sister, Nicole, was babysitting my sister, Kristen, and they decided to play Hide-and-Seek. I don't know how little my sister was at the time. Maybe five. She didn't know that when they call out "Olly Olly All Come Free," you reveal yourself and you win. She hid herself very well, and the distressed babysitter had to call her entire family over to the house, and when they couldn't find her, they were panicked enough to call the police. There were sirens in the front yard, so finally Kris came out to see what all the commotion was about.
Olive, may I recommend lying on top of the narrow wall mounted space heater underneath the coffee table? That way, anytime anyone looks under the coffee table, you'll be up off the floor high enough that they won't see you unless they actually get down on the floor and look up. And trust me, if a panicked babysitter can't find you when she's really trying, your disinterested parents may not even notice you are missing. I'm sure they'll appreciate the extra hour of quiet in the morning.
Hey! Let's have a Not-a-Real-Contest contest: Whoever guesses where Olive ends up hiding gets to nominate a jukebox song to the Condo Board!