As far as Debbie is concerned, the problem stems from a basic lack of privacy. I mean, how uncool is it to sleep in the same room as your parents?
So, one night while her mom was sleeping, Debbie swiped her credit card and hired some night contractors to come in and add a wing to the house....
These guys are good! They work fast and silently.
The job is done (and the household savings account is drained) before sunrise. Maybe Mom Harry wouldn't notice....
She's so focused on improving her cooking skills, she has no idea.