[setanta]

He is smart enough to know that it's Big Brother playing games with him and he's shown on many occassions before that he doesn't dance to their every tune, particulary when it involves something like cutting off his hair, which he obviously is very fond of. Compare what they asked him to do with what Siavash the brave wee soldier had to sacrifice. It's doubtful whether SIavash would have shaved his hair and beard for the money.

I just think it's Marcus sticking to his guns and understanding that it's all a head f£ck courtesy of the production team. Sure the housemates were laughing at the announcement of no prize funds and he's basically just no backing down. It's funny to me.