Have all the housemates sit on the couch and vote to evict a housemate. They have a ad break to decide.

Hazel would sacrifice herself in this scenario.

Would she? or would they be smart tactically and get rid of Gina or Sam?

They'd get rid of Gina.

But it'd never happen. Imagine the outrage of people who voted X times for Y and wanted their money back, claims of a fix, etc.

But they're so caught up in their own public perception and not wanting to be seen as 'playing a game'. Dexter may vote tactically but the others would cowardly try and side with the public and vote for Hazel.

forget the ad break
Get them to draw straws for it.

Have them stand over trap doors, most of them fake, with buttons in front of them. One of the buttons, when pushed, activates their trap door, the HM never to be seen again.

I want to see who has the balls to step up and evict someone. Drawing straws puts it up to luck. I am not sure Hazel would Sacrifice herself either. She talks a good game of "I am ready to leave" but I am not so sure.

Callum would go

Bump!