[lostalex]

I don't see those incidents as rigging. I believe both America's player twist (which helped dick) and the coup d'etat twist(which helped jeff) were both planned before the season started.

The Guinea Pigs thing, i think was just a bad joke, and the producers had no way of knowing what each houseguest would answer. They probably assumed they'd all get that one wrong, and just used it to give the audience at home a laugh and make the houseguests more paranoid. There's no way they could have used that question to benefit just 1 single houseguest though, cause they had no control over what answers they'd give.