Their ubiquitousness led to them being called the ' Scots Navy ' ( due to their officers ' sleeve rings being identical to those of the Royal Navy ) .
Officers were often in dangerous environments , at risk from mines , air attacks or German U-boats .
Their ubiquitousness led to them being called the ' Scots Navy ' ( due to their officers ' sleeve rings being identical to those of the Royal Navy ) and they were often in dangerous environments , at risk from mines , air attacks or German U-boats .