If there is one housemate deserving of the moniker Mr Nice Guy, it has to be Luke A - but is he finally going to lose his cool.

Hot under the collar after being burdened with the identity of the curry powder planter, he is also struggling to deal with finding out not everyone is what they seem.

He has announced he is close to losing it and even walked away from the dinner table in what can only be describe as a 'bit of a man strop'.

As a scientist during the lab rat task it seems he found the Big Brother -like privilege of being all seeing - and hearing - a bit overwhelming.

Speaking to Becky in the bedroom he said, "It's the fakeness that is getting to me. At first I could pretend it wasn't happening. It's weird for me. Usually I get on with everybody. I came in to be true to myself."

Becky offered a rare empathetic ear reminding him he wasn't in the House to make friends.

We've seen him slip up occassionally but finally we saw him drop his guard. Unable to beat his backstabbing housemates, he decided to join them, letting Becky know what Caroline said about her ahead of the maze challenge. He said, "Benedict and I thought you and Caroline were friends but when we were in the task room we heard her say, 'I can't believe they put me up against Becky. What an insult.'"

Big Brother has sent in cigarettes and alcohol. Will this fuel Luke A's fire or give him a chance to chill out?