Some years back at Bradley International Airport, there was a local air taxi company that did a lot of their new pilot training on the mid shift. They would go round and round the same ILS pattern for hours apparently swapping seats as the flight went on.
The best example I can think of was the Stearman that had so much wind noise in his terrible radio that he simply keyed the mic for a few seconds to acknowledge all transmissions from the tower and the controllers knew who it was right away…