[quote=@PillowSniffer]
Start jumping on one of their beds and attempt to fall asleep until someone tells you to get off. Then yell "Hey! What are you doing here!? GET OUT OF MY HOUSE! GET AWAY FROM MY BED!"
[/quote]

It would work, but I feel this is more suited to Bed, Bath and Beyond. Or Sleep Country... Maybe Ikea

Instigate a food fight, liberal use of pop-can grenades.