Good son: Flush the toilet and runaway
From Create Your Own Story
You have plenty of ideas to do in this bathroom but its ruined by the presence of someone in the shower, you quietly walks into the toilet and flush it.
As soon as Mr Hunter's screams from the water temperature switch you run away before Mrs Hunter comes to the bathroom, you leave their house and return to yours without the sugar.
Your mother asks what happened with the sugar but you tell her that there was no one in there. Your father then arrives with a bag of sugar and delivers it for your mom, looks like he was told to bring some sugar anyway.