Article continues below advertisementThe man formerly known as Prince Andrew had quite the potty mouth when he was still a working member of the royal family.The ex-Duke of York, 65, reportedly told his staff several times over the years to "F off," which apparently ticked off the late Queen Elizabeth. Article continues below advertisementAndrew Mountbatten-Windsor's 'Pompous' Behavior Irritated Queen Elizabeth Source: MEGAThe late monarch told her favorite son to cease treating her staff with disrespect.