Lembit fell foul of the 60-year-old, by giving him an impromptu dunking in the river as the teams made their way into camp.
The former Liberal Democrat MP had previously ruffled feathers in the boys' team as they rowed across the river in a three seater canoe to their new home - by attempting to explain the physics of rowing to a clearly unimpressed Nigel and rapper Aggro Santos.
Despite this, they rowed well as a team until they reached the shore - and Lembit stood up in the boat, prompting Nigel to fall into the water.
The soaked actor was clearly displeased when he pulled himself out of the river.'I'm going to annihilate him,' he said, 'and I think some people will be very pleased.'