A Bank of Ireland official arrived early to work to stop a €500,000 payment after Brendan Mullin stood over her desk and insisted that she sign it late the night before, the former rugby player’s trial has heard. Nicola Johnston, former client services director at Bank of Ireland Private Bank, has given evidence she was uncomfortable signing off on the money transfer to an entity called Spice Holdings as the payment had no supporting documentation. “There was nothing, just a single sheet of paper,” she said. Day nine of the trial heard the accused, then managing director of Bank of…