Have 10 or 12 friends show up like they are going to live there too.Have them eat every scrap of food in the place and have one of them occupy the bathroom at all times.Treat them to all they can eat at Taco Bell before they arrive.
Who has 10 or 12 friends who:
(1) Are willing to relocate upon request
(2) Will take vacation days to hang out in an apartment with a bizarre stranger
(3) Agree to lock themselves in a bathroom for hours to antagonize people?
I can't imagine asking any of my friends to do something like this, while I went about my own life like normal.
You may have something there. Have your 10-12 friends move right in with the squatters! It’s the same situation only your friends are now in there.