In Series 8 Shane attempts to take over the Maguire's business while Mimi is in hospital after suffering a heart attack. Jamie however feels that Shane is not up to the responsibility, and when he sees that Shane has been conned out of a drug deal, Jamie takes control by making Shane believe a gangster tried to have him killed. Jamie then encourages to shoot the gangster dead, not knowing that it was in fact Jamie who arranged for Shane to be left for dead until afterwards. A feud builds between the two throughout the first half of series 8.