As an ATCO for Betty Windsor's Broad Arrow company I worked at one of her fine flying training establishment's and many funnies were heard on the RT - one Middle Eastern Prince used to fly visual circuits yelling "get out of my way" at anyone in front of him. Another student called for radar pickup and vectors, stating he was at FL900. My sharp colleague replied "report re-entry" to the bemused young chap. Mind you, we didn't think "Mayday Mayday Practice Mayday" was very funny - till the student marched all the way to the Tower and back to apologise.