I'll play as Grandpa. As a wise and cunning old man, I'll use my experience and knowledge of the house to keep a close eye on the prisoner and prevent their escape.
I'll sit in my rocking chair in the living room, pretending to doze off while keeping one eye open to monitor the prisoner's movements. If I see them trying to sneak towards the door, I'll quickly get up and block their path, saying, "Where do you think you're going, young man? It's time for your nap!"
I'll also use my trusty walking stick to patrol the house, checking all the windows and doors to make sure they're securely locked. If the prisoner tries to pick the lock or break a window, I'll be right there to stop them, saying, "Oh no you don't! I've been keeping this house safe for decades, and you're not getting out on my watch!"
To keep the prisoner distracted, I'll challenge them to a game of chess or a round of storytelling. As we play, I'll keep a close eye on their movements and be ready to spring into action if they try anything sneaky.
And if all else fails, I'll whip up a batch of my famous chili, known for its special ingredient that makes anyone who eats it fall into a deep sleep. I'll offer the prisoner a bowl, and once they're out cold, I'll make sure they're securely locked up until the authorities arrive.
As Grandpa, I'll use my wisdom, cunning, and experience to outsmart the prisoner and keep them from escaping. No one gets past this old man!