If Marc hasn't goaded the housemates with questions then not believing their answers NONE of it would have happened. Danny and Marc had already had a falling out in the garden when Danny was telling Marc to let Nikki speak. Danny does need to be told by BB to cop on or he will be out on his ear but Marc does also. He was mourning the loss of Helen and gagging for a fight ( you don't have to be standing waving your arms about to be baiting housemates)

PRECISELY